Enjoy quick and precise front shifting and maximised power transfer thanks to HOLLOWGLIDE technology– cutting weight while maintaining stiffness, strength and performance. What’s more, the crank arm length starts at 160mm so smaller riders can benefit from SHIMANO’s legendary shifting.• Crank arm length: 160 | 165 | 170 | 172.5 | 175 mm• Chainring combination: 52-36T
