700c, 27-Inch & 650c

Confidently run a deeper, faster wheel with Aeolus XXX 6. Industry-leading crosswind stability combines with best-in-class aerodynamics to give this 60mm carbon road wheel an incredible speed advantage, all while being the lightest in its class. The wide profile gives great tire support for that classic Aeolus ride quality. It's easy to set up tubeless, and the Laser Control Track significantly enhances braking performance. - OCLV XXX carbon uses premium materials and high temperature resins with industry-leading domestic manufacturing - Speed Stability Shaping reduces side force, allowing for a deeper depth and faster profile - Laser Control Track ensures confident braking performance in all conditions - 60mm rim depth provides blistering speed with unmatched stability and rider confidence - Tubeless Ready (TLR), with 21mm inner rim width for enhanced tire support - DT Swiss internals for a buttery smooth ride feel and reliable 36-point star ratchet engagement - Laser-etched graphics provide a fast, finished look with no added weight - Includes TLR rim strip and valve stem, Black Prince Carbon brake pads, quick release, and traditional rim strip - Standard- and tubeless-tire compatible

Whether you're touring, building the ultimate commuter or just want excellent stopping power on the road, Bontrager's Select Disc Road Front Wheel is a sweet choice. Free speed will be yours thanks to the low-profile aero rim and 24 spokes that aren't afraid of rough roads. Plus, the hub is easily serviced and features polished, ground bearing races, a forged shell and a chromoly axle for top-notch durability.

There has never been a better time to upgrade to the feel and performance of carbon wheels. Aeolus Pro 3 TLR is a full carbon, tubeless-ready rim brake road wheel that balances durability, weight, and aerodynamics for pro-level performance that doesn’t break the bank. Bontrager started with a proven 35mm-depth shape and added the versatility of disc brake hubs to make a carbon road wheel available to all. Key features - D3 Dual Directional Design profile cuts drag at tire-leading and rim-leading edge - OCLV Pro carbon offers an optimized blend of weight, stiffness, and durability - Tubeless Ready (TLR) rims allow for quick transition to tubeless system - Stacked lacing alignment provides a better spoke bracing angle for a stiffer wheel - 35mm depth OCLV Carbon rim (27mm outer, 19.5mm inner width) DT Aerolite spokes and Alpina locking nipples - Center lock disc hubs with 12mm thru-axle front and rear, Bontrager 24 point engagement, 3 pawl hub - Compatible with Shimano 10/11 speed, SRAM 10/11 freehubs, axle swap kit available for quick release and 15mm - Includes TLR rim strip, TLR valve, valve core removal tool, and traditional rim strip

Full-carbon, 50mm deep tubeless-ready disc brake wheel that perfectly balances durability, weight, and aerodynamics. Proven, tested design for the perfect upgrade There has never been a better time to upgrade to the feel and performance of carbon wheels. Aeolus Pro 5 TLR is a full carbon, tubeless-ready disc brake road wheel that balances durability, weight, and aerodynamics for pro-level performance that doesn’t break the bank. We started with a proven 50mm-depth shape and added the versatility of disc brake hubs to make a carbon road wheel available to all. Product details - D3 Dual Directional Design profile cuts drag at tire-leading and rim-leading edge - OCLV Pro carbon offers an optimized blend of weight, stiffness, and durability - Tubeless Ready (TLR) rims allow for quick transition to tubeless system - Stacked lacing alignment provides a better spoke bracing angle for a stiffer wheel - 50mm depth OCLV Carbon rim (27mm outer, 19.5mm inner width) DT Aerolite spokes and Alpina locking nipples - Center lock disc hubs with 12mm thru-axle front and rear, Bontrager 24 point engagement, 3 pawl hub - Compatible with Shimano 10/11 speed, SRAM 10/11 freehubs, axle swap kit available for quick release and 15mm - Includes TLR rim strip, TLR valve, valve core removal tool, and traditional rim strip

Smooth rolling and confident braking. The Tubeless Ready Paradigm Comp Disc wheel offers consistent, confident braking and all-condition performance. Stacked lacing provides a better bracing angle for a stiffer wheel and an agile and more responsive ride feel while interchangeable axles allow for maximum compatibility. Key features - Stacked lacing alignment provides a better spoke bracing angle for a stiffer wheel - Tubeless Ready (TLR) rims allow for quick transition to tubeless system upgrade - Offset spoke bed reduces wheel dish for stiff and stable performance - Interchangeable axles allow for compatibility with more frames and forks - Lightweight alloy rim (23mm outer, 19.5mm inner width) - Includes Bontrager TLR rim strip and TLR valve stem - No rider weight restrictions

Affordable Aero Combine state-of-the-art aerodynamics with the benefits of tubeless ready, and you've got the Aeolus Comp 5 TLR road wheel. A classic aluminum rim with a seamlessly attached 50mm carbon fairing combine for a proven aero profile that has been wind tunnel tested to be incredibly fast. Aeolus Comp 5 TLR is a proven high-value option for the aero-conscious rider. Key features - Rim construction combines lightweight aluminum rim with a bonded carbon fiber fairing - Tubeless Ready (TLR) rims allow for quick transition to tubeless system - Aluminum with carbon rim construction (23mm outer, 17.5mm inner width) - Compatible with Shimano 10/11 speed, SRAM 10/11, - Includes Bontrager TLR rim strip, TLR valve stem, internal cam quick release, and traditional rim strip - DT bladed spokes 18fr, 24r, Alpina locking nipples - No rider weight restrictions

For the groad less traveled Aeolus Pro 3V is the ultimate road disc upgrade. It has a wider 25mm internal rim so you can run lower pressure for better tire support, added traction, better cornering, and a faster, more comfortable ride. Plus, Rapid Drive 108 road hubs add snappy engagement for an all-around better ride. Product details - OCLV Pro Carbon offers an optimized blend of weight, strength, and durability - D3 Dual Directional Design profile cuts drag at tire-leading and rim-leading edge - 25mm inner rim width (32mm outer) for added tire support to suit larger-volume road and gravel tires - Rapid Drive 108 road hubs provide quick engagement for faster acceleration and increased control - Tubeless Ready (TLR) rims allow for quick transition to tubeless system - Center Lock disc with 12mm thru-axle and end caps available for 15mm conversion - Carbon Care Wheel Loyalty Program offers no-cost replacement or repair of rim for first two years of ownership - No rider weight limit

Been eyeing our new Airless-tire-equipped Alibi, but already have a trusty commuting steed? Featuring our Nimbus 700x38C Airless tires, the Alibi Sport Wheelset lets you reap the benefits of Airless tires on your beloved ride. With a 7-/8-/9-speed compatible hub, a machined braking surface, and double-wall rims, you'll spend more time riding and less time doing maintenance. - Double-wall rims are strong and durable. - Machined braking surface creates superior stopping power in any condition. - 7-/8-/9-speed cassette rear hub provides plenty of gearing options for climbing and riding the flats. - Standard equipment on Alibi Sport bike. - Quick-release/Alloy hubs w standard cassette body. - Comes with Nimbus 700x38C Airless tires. - Rim brake only. - Perfect for upgrading hybrids to Airless technology. - Sold as a set.

Whether you're touring, building the ultimate commuter or just want excellent stopping power on the road, Bontrager's Select Disc Road Rear Wheel is a sweet choice. Free speed will be yours thanks to the low-profile aero rim and 24 spokes that aren't afraid of rough roads. Plus, the hub is easily serviced and features polished, ground bearing races, a forged shell and a chromoly axle for top-notch durability. And the 130mm and 135mm Over Locknut Dimension (OLD) hub options makes these wheels usable on both your road or cyclocross frames.

Slice through the wind on Roval's Rapide CLX 40 Wheelset. They feature 40mm-tall aero carbon rims, and DT Swiss Revolution straight-pull spokes laced to sealed ceramic cartridge bearings Roval hubs. The rear hub is adorned with DT Swiss's renowned 240 star ratchet internals. The wide, carbon rim provides a round tire profile and greater lateral stiffness for precise handling. This feathery, 1240-gram wheelset spins up with ease so you can bolt out of corners and breeze up the climbs. With your favorite tubular tires, these wheels roll as smooth as silk.

Centerlock hubs on tubeless-ready rims. Includes convertible endcaps for Quick-release and Thru-Axle

The best price on the market for a wheel meant to be ridden. Single-wall rims and hubs that come out of the box round and true. - 25mm external rim width

Making up about 50% of your total race time, the bike portion of a triathlon is where equipment choices can make the difference between first and fifth, and no other equipment choice will save you more time than a disc wheel. While traditionally-shaped disc wheels are faster than their spoked counterparts, the Roval 321 Disc for disc brakes turns conventional design on its head, creating the fastest wheel on the planet. Disc wheels often fall into two categories—a completely flat shape, with structure coming from carbon fiber and a honeycomb-foam filling, or a spoked wheel that's been faired with a carbon fiber cover. In our quest to break traditions, the 321 uses a single layer of 1k carbon fiber on each side of the wheel, and it all comes together at the brake track bridge. This kind of carbon fiber is rarely used in bicycle components due to its high manufacturing cost, but it offers a bevy of performance benefits. This coveted carbon is much lighter than other layups, like 3k and 12k, and it can only be laid by the most skilled of carbon fiber craftsmen. It's complicated, but the payout is worth it, as it delivers a supple ride and one of the lightest disc wheels available. And in the real world, this means that it'll spin-up quickly and reduce fatigue over the length of the course. Stiffness is often the “hot-topic” in the disc wheel world, but we think it’s an interesting conversation. It's long been thought that efficient power transfer and high stiffness are directly correlated, but through extensive field-testing, we've determined that this isn't the case at all. In fact, our initial disc was so stiff that, under power, it wouldn't flex with the frame and this caused brake rub. This wrongly creates the perception of a flexy wheel, when really, the wheel is actually too stiff. In order to solve the brake rub problem, we first designed our optimal aero shape and then worked on our internal stiffness targets to fit within what we consider to be a desirable frame stiffness. And while light overall weight was a development priority, our focus was aerodynamics. Through hours of Computational Fluid Dynamics (CFD) and testing in the Win Tunnel, we developed a never-before-seen shape that's optimized to work with a tire for on-bike airflow. What this translates to is an all-carbon disc wheel that, on the non-drive-side, has a shape that's as aerodynamic as our current understanding allows, and a drive-side shape that's as aerodynamic as the wheel-dish and derailleur clearance will allow for. To save every possible watt, we've also added CeramicSpeed bearings and DT Swiss 240 hub internals into our hub. Each 321 Disc wheel is also 2Bliss Ready right out of the box and comes with a padded wheel bag, quick-release, and tubeless valve stem. Designed for the most uncompromising athletes in the world, with engineering to match, the 321 Disc is the world's most advanced disc wheel for your race against the clock. - Rim Type: Full carbon clincher, 2Bliss Ready - Rim Material: Carbon - Braking Surface: Disc brake only - Rim Depth: Solid Disc - Rim Width: 19mm internal, 27.3mm external (at brake track) - Rear Hub: Roval Disc 142x12mm, CeramicSpeed bearings, DT Swiss 240 internals, 11-speed - Assembly Method: Handmade - Extras: Roval padded wheel bag, Roval tubeless valve, Roval valve pocket covers - Weight: 1015g

Roll fast, stop fast Paradigm Elite Disc is the ultimate high-performance Tubeless Ready disc wheel. The trusted DT Swiss star ratchet system offers a more responsive engagement, while stacked lacing provides a better bracing angle for stiffness, agility, and speed. Product details - Stacked lacing alignment provides a better spoke bracing angle for a stiffer wheel - Tubeless Ready (TLR) rims allow for quick transition to tubeless system upgrade - Offset spoke bed reduces wheel dish for stiff and stable performance - Interchangeable axles allow for compatibility with more frames and forks - Lightweight alloy rim (23mm outer, 19.5mm inner width) - Compatible with Shimano 10/11spd, SRAM 10/11, Center Lock - No rider weight restrictions - Includes Bontrager TLR rim strip and TLR valve stem

A durable road wheel with a 25mm inner width perfect for higher-volume road and gravel tires. A wider rim for a better ride The Paradigm Comp 25 road wheel adds traction, speed, confidence, and comfort to your ride, with a wider internal rim width that lets you run lower pressure for better tire support. Product details - 25mm inner rim width (30mm outer) offers added tire support to better suit larger-volume road and gravel tires - Rapid Drive 54 road hubs provide quick engagement for faster acceleration and increased control - Offset spoke bed reduces wheel dish for stiff and stable performance - Tubeless Ready (TLR) rims allow for quick transition to tubeless system - 23mm rim depth with 24 hole front/rear and DT Aerolite spokes - Centerlock disc with 12mm thru-axle and end caps available for 15mm conversion - Includes TLR rim strip and TLR valve for simple tubeless setup - No rider weight limit

There’s nothing middle of the road about the 808 Firecrest. At 82mm deep, it’s all out aero. Thanks to refinements to Zipp’s revolutionary Firecrest rim shape to be tubeless compatible and optimized for wider tires, the 808 Firecrest Carbon Clincher Tubeless Disc brake is ideal for the new era of disc brake road riding and racing. Without the constraints of rim brake caliper compatibility or brake-track requirements, the Firecrest Carbon Clincher Tubeless Disc-brake wheels offer the increased stopping power and modulation of disc brakes and a whole lot more. To maximize the aero performance of the wheels, Zipp’s ABLC dimples extend all the way to the outer edge of the disc-specific rims. The wheels are also optimized for wider tires to meet the performance needs of modern riders in search of low rolling resistance and aero efficiency with high comfort. The deeper Firecrest Tubeless Disc brake has an internal width of 19mm and are aerodynamically optimized for 25mm wide tires. This design improves Firecrest’s ability to yield low aerodynamic drag and high crosswind stability, a combination called AeroBalance. Designed to be tubeless compatible, the wheels feature a rim bed made with internal ridges to lock the tire’s bead in place, ensuring secure performance even when ridden at lower tire pressures. Zipp’s low rolling resistance and high grip Tangente RT28 and RT25 Road Tubeless tires pair well with the Firecrest disc brake wheels. A new carbon fiber layup for the Indianapolis-made rims keeps weight low while maintaining the Firecrest Carbon Clincher’s proven durability. The robust 77D/177D hubset, paired with 24 Sapim CX-Sprint spokes front and rear, keeps the wheels stiff and responsive. To ensure compatibility with any bike, the versatile 77D/177D hubs come with swappable end caps to work with QR’s and thru-axles, including 12x100mm and 15x100mm front thru-axles as well as 12x142mm rear thru-axles. The 177D rear hub is also XDR driver body compatible for use with SRAM 10-42 cassettes. Each Wheel Includes: - Zipp Tangente Quick Release Skewer - Zipp Tubeless valve – factory installed - Tubeless rim tape – factory installed - Valve core removal tool - Zipp 77D/177D thru-axle caps to fit 12x100, 15x100 dropouts for front wheels - Freehub body spacer – 11 to 10 speed

Zipp’s first product almost three decades ago was a disc wheel. It’s at the heart of their heritage. Now, Zipp is pioneering the next generation of disc wheel, the Super-9 Disc-brake Disc. The Super-9 Disc itself, handmade at Zipp's factory in Indianapolis, USA, optimizes supreme aerodynamics, power transfer, stiffness, lightweight and durability.The Super-9 disc has an unassuming profile. It borrows from the perimeter shape that makes the Sub-9 so fast it can actually generate forward lift, but in place of the Sub-9's toroidal bulge, the Super-9 remains flat from its widest point all the way to the hub. This relatively simple-looking shape results in a wheel that's as fast as the Sub-9 but stiffer than any other Zipp disc. Braking on modern time trial and triathlon bikes often has been a challenge. The superior performance of disc brakes changes all that with greater stopping power and more precise speed modulation, all with less hand effort than required by traditional brakes. That means greater confidence in corners, descents, and on technical courses. The disc brake version of the Super-9 disc retains the light weight of its rim-brake counterparts. - Includes: Aero Stainless Steel Black Quick Release, 10-speed hub spacer, Platinum Pro EVO Brake Pads, Valve Extender, Valve Adaptor, Valve Decal

Whisky No.9 30d carbon road wheels deliver leading edge, tubeless performance across a broad range of drop bar disciplines. The No.9 30d road rims offer a lightweight, stable platform with a wide internal width that pairs well with 25-35c tires. These disc brake-specific wheels have clean lines and provide great versatility from tarmac to gravel, brevets to the CX course. These wheels are Whisky’s lightweight go-to choice for all-around performance. - Centered around DT Swiss 350 hubs, well-known for their balance of performance, weight and tool-free serviceability - Laced with j-bend DT Aerolite spokes and brass nipples for durability and serviceability - Each wheel includes a Whisky tubeless valve and tape

Cross is always coming Ready for your call-up? Punchy accelerations and twisty off-camber corners are no problem for this cyclocross-specific tubular wheel. The lightweight alloy rim has a wide profile specifically designed to support cross tires and features 108 points of engagement so that every ounce of energy you put down moves you forward, fast. Key features - Light and durable alloy tubular rim designed for cyclocross use - Rapid Drive 108 j-bend hub instantly transfers effort into forward momentum - 142/100 spacing with 12mm thru-axle front and rear, convertible to 15mm/5mm QR fr or 5mm QR rear - Center Lock disc hubs with interchangeable axles increase compatibility - 24 hole fr/r with DT Swiss bladed spokes, Alpina locking nipples - Designed and tested with elite riders from Telenet Fidea Lions - Compatible with Shimano 10/11 speed, SRAM 10/11 freehubs, XD driver available

Featuring a lightweight rim and strong bladed spokes, this is a wheel that marries good climbing abilities with a precision ride. This is the idea behind the ER 1600 SPLINE 23: Building a wheel able to perform anywhere, and to perform well. The wide rim and superb Ratchet System hub bring traction and reliability into the mix — it's perfect for riding all year, on all roads, and on mixed terrain.

At the core of this all-around wheelset lies a modern, wide, and light aluminum rim. Being the foundation of the wheel, it makes for a balanced width-to-stiffness-to-weight ratio. This rim is complemented by a hub featuring DT Swiss' proven pawl system freewheel as well as a high-end build with bladed spokes and elaborate alloy nipples. These features make it a premium training wheel easily able to race your mates when the city limit sign comes up.

Whether you're looking to take it to the limit on a climb or throw down in a sprint, Campagnolo's Bora One 35 wheels are where it's at. Their 35mm deep-dish carbon rims and aero spokes are exactly what you need to slice through the wind and move to the head of the pack. They're also feathery light to give you a boost when the road turns uphill. And, the aluminum hubs house USB hybrid ceramic bearings for a zippy ride. Plus, the Boras come with Campy's legendary quick-releases, too. - 35mm carbon rim means greatly reduced weight - Clincher version ensures easier bike maintenance and management - The rim has exactly the same structure as that of top-of-the-range wheels - The aluminum hubs and ceramic USB bearings ensure performance at a lower price - 35mm high rim gives this wheel good performance on long stretches on the flat where even the aerodynamic factor is important - All the Campagnolo knowhow in the field of carbon makes this wheel lightweight and perfect for longer steeper climbs - Number of spokes: 18 Front, 21 Rear - RDB – Rim Dynamic Balance - Bladed aerodynamic spokes - Stainless steel spokes - Ultralinear/DRSC geometry - Aluminum nipples - Weight: 1405 grams Included: - Special brake pad kit for carbon wheels (red compound): 40% better braking performance in wet conditions and 20% in dry. - New Quick Release wheels with a totally redesigned aerodynamic profile, lighter and with a shiny finish. - Valve extender

Innovating the wheel that for years has been a market benchmark might have seemed difficult and risky, but the Campy Tech Lab designers have managed to maintain those characteristics of flexibility and ease of handling that have made this high-profile wheel easy to steer, high performing and safe. The Bora Ultra 50 bursts onto the market not only with introduction of the new tire bed dedicated to the clincher, but also with improvements to the previous version in terms of lightness, aerodynamics, stiffness and comfort thanks to use of the new wider rim and front and rear hubs with different diameters. The 2018 range sees the addition of the new AC3 (All Conditions Carbon Control) Technology braking track, which brings braking safety on wet terrain closer to that on dry. Plus, extremely clean-cut aesthetics guaranteed by innovative water-transfer graphics. All without giving up on the extreme smoothness, which has become the market benchmark and is the result of use of CULT bearings. - 50mm Full Carbon rim guarantees the best quality available on the market - Long-lasting smoothness is ensured by CULT bearings, nine times better performing than a standard solution - Internationally one-of-a-kind AC3 technology guarantees unique performance by the Bora Ultra 50 also when braking - Excellent grip between brake pad and rim allows for gradual, constant braking and shorter stopping distances, even in wet conditions - Dedicated brake pads (red compound) guarantee reliability and durability - Aerodynamic spokes, wider profile, carbon hubs, CULT bearings, self-locking aluminum nipples, oversize flanges and much more - The distinctive G3 design of the rear wheel guarantees excellent stiffness and an unmistakable look - Weight: 1,435 grams

If perfection is the standard, then the 303 Firecrest Carbon Clincher wheelset delivers everything you could ask for, including a heritage forged in the Spring Classics. At the center of the 303 Firecrest Carbon Clincher is the 77/177 hubset, an innovation that results in improved aero performance, stiffness, braking, durability, simplicity, and versatility. The 303 Firecrest is light enough to climb up the steepest gradients with ease as a go-to all-around wheelset. - Improved 45mm rim profile – fast, stable, and versatile - ABLC Sawtooth dimple design helps manage airflow around the rim for a faster, more stable wheel - Industry leading Showstopper brake track: powerful and consistent braking, even on wet terrain - 77/177 hubset, reliable & durable, proven in the Spring Classics, no pre-load adjustment required - XDR driver body available for 1x setups - Sapim spokes & nipples - ISO 4210 compliant. See Declaration of Conformity for details

Developed in Specialized's Win Tunnel, and designed to interface with the world’s fastest tire, the S-Works Turbo, the Roval CLX 64 Disc is one of the fastest disc brake road race wheel/tire system ever developed. The SCS hub allows for a proper chainline on short chainstay performance road and 'cross bikes. This wheel system comes complete with the S-Works Turbo tire which measures 24mm wide for enhanced stability and traction in corners and on descents. This rear wheel uses an AFD1 SCS Center Lock aero hub that's compatible with a QR or 12mm thru-axle.

While our Hybrid Endurance wheels are made to deliver maximum speed on tarmac, our Hybrid Gravel wheels deliver maximum fun on gravel roads. The HGC 1400 SPLINE 42 is the answer for high-end e-gravel bikes that set the benchmark in a new cycling segment. With a select mix of high-end e-specific hubs, spokes, and rims, this wheelset has the pedigree to be the uncontested King of e-gravel.

The HEC 1400 SPLINE 62 is the ultimate e-road bike wheelset with a true racing character and outstanding aerodynamic performance. Specifically developed e-bike components, ensuring a long-lasting and trouble-free ride, this wheelset offers the speed needed when you want to fall-in with the young guns keeping the pace high on your group ride. And let's be honest, the visual appearance of the HEC 1400 SPLINE 62 turns every e-road bike into a head-turner. - Shimano/SRAM 11-speed road cassette-compatible

Performance, durability, and versatility. Zipp checks all the boxes with its 30 Course Rim-brake Clincher wheelset. A wide 21mm internal rim profile delivers speed, stability and comfort over a variety of surfaces, and Zipp's 71/177 hubset provides smooth and efficient power transfer. Sapim CX-Ray spokes and redesigned ergonomic skewers round out this excellent all-around package. Each wheel includes rim tape, a tubeless valve, and a 1.85mm spacer for use with 10-speed cassettes.

Upgrade your road bike with Zipp’s 30 Course Disc wheels. Featuring stiff, light 26mm-deep Zipp aluminum rims, Zipp's precision 77D/177D disc hubs and Sapim's outstanding CX-Ray spokes, these hoops maximize your power transfer for superior acceleration, climbing and handling. They also boast a 25mm-wide tire bed for running wider tires to improve the ride even more.

Road bikes are going where they’ve never gone before, are expected to do more, and are being ridden harder than ever. At the same time disc brakes are rewriting the rules of what’s possible with rim design. For this new era, the Zipp 303 Firecrest Tubeless Disc-brake wheelset sets the new standard. With a disc-specific, tubeless rim, the 303 Firecrest Carbon Clincher is now internally 21mm wide and faster than ever. Designed from the start as a tubeless rim, the 303 Firecrest features a rim bed made with internal ridges to lock the tire’s bead in place, ensuring secure performance, even when ridden at lower tire pressures. A new carbon fiber layup keeps weight low while maintaining the 303’s legendary durability. The rim’s lightweight design allows the 303 to glide up the steepest climbs while SRAM's robust 77/177D hubset keep the wheels stiff and responsive. Each Wheel Includes: - Zipp Tubeless valve extender and valve-core wrench - Zipp rim tape (factory taped) - Zipp Tangente quick-release skewer - Zipp thru-axle end caps