Hoopdriver Bump & Grind
Carbon Disc Brake Wheels

OVERVIEW

Pearson Bump and Grind remains the wheelset of choice for gravel riders the world over. With a durable, carbon-fibre rim, this tubeless-ready wheelset ensures unrivalled stiffness and optimal power transfer. The broader internal width, of 21mm, helps larger tyres sit smoothly on the rim, maximising rider comfort and confidence. Off-road conditions can be unpredictable, which is why our Bump and Grind rims have also been designed with a shallower depth, of 28mm, offering exceptional stability during crosswinds. To ensure longevity, we laced our carbon rims with 24 spokes on each wheel. The precision, sealed-bearing hubs offer all-weather resilience, while the thru-axle design aims at stability comparable to mountain biking. Our wheels are one of the lightest gravel-specific sets on the market with a lightweight component combination keeping them nimble regardless of the terrain. Especially welcome when loose, gravel tracks pitch upward! Guy Pearson. If you'd like these built with Classified's revolutionary Powershift Hub, get in touch here for more information.

FEATURES

• Unidirectional high modulus carbon rim construction
• 40mm tyre compatibility
• Tubeless-ready
• High strength spoke pattern front and rear
• Lightweight

TECHNICAL DETAILS

• Unidirectional high modulus carbon rim construction
• 28 mm front and rear rim depth
• 21mm inner rim width, 29mm outer rim width
• 24 Sapim CX-ray bladed stainless steel spokes front and rear
• Novatec sealed-bearing, centre-lock, 12mm thru-axle hubs
• Shimano and SRAM 11 speed compatible
• PVC high strength rim tape
• Tubeless compatible
• 1410 grams