Leeze
Carbon BASIC BOOST
Carbon BASIC BOOST
Shimano / CH 50 AR
Leeze Bike Store
Hohenholter Straße 25
Leeze GmbH
48329 Havixbeck
Germany
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Leeze Carbon BASIC BOOST – now available with a 40 mm or 50 mm hookless rim. Equipped with the Road Boost axle standard, the Leeze Carbon BASIC BOOST offers the perfect combination of performance, stiffness, and durability for your all-road, gravel, or e-road bike. Whether you’re riding aerodynamically on the road or ruggedly off-road, the Carbon BASIC BOOST is your gateway to the world of lightweight carbon wheels compatible with the Boost standard.
- Leeze BASIC third-generation carbon rims
- Very sturdy construction with exceptionally sturdy blade spokes
- High-quality and durable: Leeze Disc Advanced BOOST hubs (12x110 mm, 12x148 mm)
The characteristics, intended use, and recommended tire setups for the Leeze Carbon BASIC BOOST depend on the rim variant selected. For detailed information, please refer to the product descriptions for the corresponding BASIC wheelsets: CH 40 BASIC AR, CH 50 BASIC AR
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 | 1560 | 1620 g (5% tolerance) | |
| Wheel material | Carbon | |
| Wheel type | 25-622 without hooks | |
| Braking system | Centerlock disc brake | |
| Rim height | 40 | 50 mm | |
| Wheel width | 33 mm | |
| jaw width | 25 mm | |
| Logos | black, painted | |
| Tire type | Hookless folding/clinch tires, tubeless-ready only | |
| Tire widths | 30–65 mm | |
| Hub | Leeze Disc Advanced BOOST VR & HR | |
| freewheel | Shimano 10-/11-/12-speed / SRAM 10-/11-speed, SRAM XDR 12-/13-speed, Shimano Micro Spline; conversion to Campagnolo and Campagnolo N3W possible | |
| Axle standard | 12 mm Road Boost thru-axle (12x110 mm, 12x148 mm) | |
| Number of spokes | 24/7 | |
| Spokes VR | Pillar knife spokes, crossed twice | |
| Spokes HR | Pillar knife spokes, crossed twice | |
| 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-21247-03
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 take into account the combination of tire, rim, and setup (reduced maximum pressures, especially for tubeless and hookless setups)! If different values apply to the wheel and tire, the lower value is always the valid maximum. Excessive pressure can cause a tire blowout and thus lead directly to crashes resulting in serious injuries.
Use only tire types and sizes approved in the technical specifications (especially for tubeless and hookless setups). Incorrect combinations can lead to tire failure or the tire coming off the rim, which can directly cause crashes resulting in serious 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.
