IMTOS 270g Carbon Crankset DUB 29mm Carbon Spindle Crank Arms

Only 270 g - Full-Carbon Set - Carbon crank arms plus the DUB 29 mm carbon spindle weigh just 270 g (±10 g)(165mm). One of the lightest ways to drop rotating weight on a road or gravel bike.

Full-Carbon Construction - Unidirectional carbon fibre arms bonded to a 29 mm DUB-standard carbon spindle with machined alloy spline ends. Maximum stiffness under load, corrosion-free, no metal axle weight, UD carbon with clear gloss finish.

Lab-Tested Strength & Fatigue Life - Over 350 kg ultimate breaking load; fatigue tested at 45° for 200,000 cycles on both drive and non-drive sides (twice the 100,000-cycle ISO reference); impact tested 65 J x 10 times and 130 J x 1 time. Certified to ISO 4210-2:2023, SGS report No. CZHL260801353501BC.

7 Crank Lengths, 155-172.5 mm - 155 / 160 / 162.5 / 165 / 167.5 / 170 / 172.5mm. Pick the length that matches your leg length, hip angle and riding style: a shorter arm opens the hip angle, a longer arm adds leverage. Every length uses the same DUB 29 mm carbon spindle.

Fit & Compatibility - Easton chainring interface, DUB 29 mm spindle standard, 92 mm assembly width, fits BSA 68mm and BB86 bottom-bracket shells, 149 mm Q-factor, 44 mm chainline. Requires a DUB-compatible bottom bracket (not included). Crank arms are supplied WITHOUT chainring - please confirm your frame BB standard and chainring interface before ordering.