Leeze
CC 45 COMP AR BOOST
CC 45 COMP AR BOOST
Shimano
Leeze Bike Store
Hohenholter Straße 25
Leeze GmbH
48329 Havixbeck
Germany
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Leeze CC 45 COMP AR BOOST – the carbon upgrade for your all-road bike with the Road Boost axle standard.
Whether you’re seeking aerodynamics on the road or durability off-road – the Leeze CC 45 COMP AR BOOST is your gateway to the world of carbon wheels, designed to fit the Road Boost axle standard on your all-road, gravel, or e-road bike.
Whether you're riding on the road, off-road, or on gravel—the CC 45 COMP AR BOOST offers maximum flexibility. Perfect for long distances, commuting, or bikepacking.
With a 45 mm rim height, 23 mm rim width, and understated design, the CC 45 COMP AR BOOST is the all-rounder for any terrain.
- Optimal comfort setup for road riding with 30–32 mm wide tires
- Best Gravel setup with 40 mm wide tires
- Tire widths ranging from 28 to 50 mm can be used
Road Boost Axle Standard
The Road Boost axle standard combines the proven 12 mm thru-axles with wider spacing: 110 mm at the front and 148 mm at the rear. This provides greater lateral stiffness for the wheels and more tire clearance on the frame. This axle spacing is primarily used in the e-road bike segment but is also occasionally found on gravel bikes, such as the Focus Atlas.
| Weight1 | 1640 g (±5%) | |
| Wheel material | Carbon | |
| Wheel type | 23-622 with hook | |
| Braking system | Centerlock disc brake | |
| Rim height | 45 mm | |
| Wheel width | 31 mm | |
| jaw width | 23 mm | |
| Logos | black, painted | |
| Tire type | Folding/clinchers, tubeless-ready | |
| Tire widths | 28–50 mm | |
| Hub | Leeze Disc Advanced BOOST VR & HR | |
| freewheel | Shimano 10-/11-/12-speed / SRAM 10-/11-speed, SRAM XDR 12-speed | |
| Axle standard | 12 mm Road Boost thru-axle (12x110 mm, 12x148 mm) | |
| Number of spokes | 24/7 | |
| Spokes VR | Sapim CX-Leader, 2x crossed | |
| Spokes HR | Sapim CX-Leader, 2x crossed | |
| Weight limit | 120 kg system weight |
- Wheel set
- Valve stickers to prevent valve rattling (2 pcs.)
- 2x tubeless rim tape (already installed)
Available to match your wheelset: tubeless valves, tire sets, brake rotors, and cassettes.
Manufacturer's part number: LRS-21246-01
Here you'll find detailed instructions on how to use and maintain your wheelset:
Please observe the following safety instructions to ensure your safety and the longevity of your wheels. The accompanying or online user manual is an integral part of the product and must be read in its entirety before use.
Do not exceed the specified maximum total weight (rider + bicycle + luggage). Exceeding this limit can lead to equipment failure and cause a fall resulting in serious injury.
Do not exceed the specified maximum tire pressure. Always consider the combination of tire, rim, and setup (reduced maximum pressures, especially for tubeless and hookless setups). If the wheel and tire have different maximum values, the lower value always applies as the valid maximum. Excessive pressure can cause tire blowouts, leading directly to crashes and severe injuries.
Only use tire types and sizes approved in the datasheet (especially for tubeless and hookless setups). Incorrect combinations can lead to tire defects or tire blow-off, directly causing crashes and severe injuries.
The assembly, disassembly, and maintenance of safety-critical components (e.g., spokes, hub bearings, tubeless setup, brake rotors, thru-axles, cassette) must only be performed by qualified specialist personnel. Improper execution can lead to material failure and serious accidents.
Always tighten thru-axles, cassettes, and brake rotors with a torque wrench, observing the torque values specified by the respective manufacturer. Grease the freehub body before installing the cassette to prevent cogging of the sprockets. When mounting or dismounting tires, use only plastic tire levers as a last resort; never use metal levers or other hard objects to avoid damage to the rim and tire.
Use the wheelset only for its intended purposes (e.g., road bike or gravel), see link: Leeze Intended Uses. Use the wheelset only with disc brakes. Do not expose the wheels to high temperatures (e.g., in a car in the sun or leaning against a radiator). Not suitable for downhill, BMX, jumps, cargo transport, or other extreme uses.
Regularly check your wheels for cracks, delamination, and damage to spoke holes, brake track, or rim bed. For optimal spoke tension and trueness, we recommend wheel checks every 5,000–10,000 km, every 12–24 months, or after 6 months of inactivity. If damage is suspected, stop riding immediately and contact Leeze service. In case of doubt, discontinue use immediately and consult the manufacturer or a specialist dealer.
Clean rims, spokes, and hubs regularly with mild soap and water; avoid high-pressure cleaners and direct water jets on bearings. Store wheels dry and dry them after wet rides. For extended periods of inactivity (>6 months), we recommend a bearing and wheel check. Clean and grease the freehub system regularly. For tubeless systems, replace sealant and rim tape at least twice a year to prevent damage to spoke nipples. Negligence in maintenance can lead to premature wear, malfunctions, or sudden failure during a ride, thus posing a safety risk.
Stop riding immediately and have the wheels professionally inspected, even for minor or invisible damage. Invisible cracks in the carbon can lead to sudden breakage and a crash.
