Now back IN STOCK!
The all new Girder Carbon sets its sights to become the go-to crank for the Trail / Enduro world. With the combined benefits of a wide bearing stance, 30mm aluminum spindle, and now lightweight carbon arms, this is a fantastic upgrade for any bike and rider.
- Carbon arm construction
- 170 / 175 | 3-bolt direct mount ring interface
- M30 Spindle | Requires Praxis M30 BB
- Wave Tech DM ring 49mm or Boost 52mm chain line
- Works with 10/11/12sp chains
- Weight 542g +/- (175 with 32T)
- Q-Factor 172mm
- INSTRUCTIONS HERE
BB : The Girder Carbon M30 mountain crank requires the use of a Praxis M30 bottom bracket as it has a 30mm drive bearing, and a 28mm non-drive bearing unique to Praxis. Please choose from the M30 options above for your specific frame spec.
DM RING : We make two versions of our DM rings for correct chainlines. “DM-A” or “DM-B”
When installed on a Praxis mtn crank : DM-A = 49mm NON-BOOST Chainline.
When installed on a Praxis mtn crank : DM-B = 52mm BOOST Chainline.
Note : Chainline is critical. Do NOT install another brand DM ring on a Praxis Mtn crank as the chainline will not be correct 49mm or 52mm Boost.