Extend cranks MTB SR13I 22-36T 170 mm dural (black)

Extend cranks MTB SR13I 22-36T 170 mm dural (black)

Aluminium/steel double chainset for 8/9/10S bikes on a 170 mm aluminium crank arm with an integrated 24mm spindle (Hollowtech II compatible) for a threaded BSA bottom bracket.

Material: cranks - Al 60601-T6 / outer chainring - 3mm dural + inner chainring - steel / spindle - CrMo.

Shift ramps on the back of the outer chainring for better chain transition when shifting

Chainline 48.5 mm.

Q-factor - 176 mm.

BCD = 104/64 mm

Weight: chainrings + right crank = 591 g / left crank + bolt = 295 g

OEM packaging