Surly's OD cranks now have a more durable outer chainring option. Designed to handle snowy wet conditions that a fat bike using
Surly''s OD crank might see the new
OD Chainrings are made from
stainless steel. The material change from alloy to stainless wasn''t the only update,
Surly also revised the profile of the ramps, gates, and shift pins for better, more consistent shifting.
Surly has an
OD Chainring replacement guide available online
here.
- For Surly OD cranks
- Updated ramps, gates, and shift pins
- Direct replacement for older alloy OD chainrings