Praxis Works Doon Cranks 50/34t 170mm CheckoutSpec= Reba (2005-2008)/Recon (2006-2009)/Revelation (2006-2009)/Pike(2005-2010) Composite back cap features a

Composite back cap features a secure clip or use the included silicon rubber strap to attach to a variety of tube diameters

This economy waxing iron ensures consistent heat through an extra-thick bottom plate with unique grooves to ensure optimum distribution of wax

Hook and loop strap fasteners or cable ties can be used to mount the Mudrocker to the fork bridge

Designed for a 55mm chain line

BCD Direct Mount SRAM 8 Bolt Speed 12 Chainline 45mm Teeth 46/33 Crank Spindle Diameter 28

Praxis Works Doon Cranks 50/34t 170mm CheckoutSpec= Reba (2005-2008)/Recon (2006-2009)/Revelation (2006-2009)/Pike(2005-2010) Composite back cap features aPro level carbon arms with M30 Thru (30mm) alloy spindle Cold forged, proprietary LevaTime II X rings (104 160BCD) with steel chainring bolts *M30 Thru BB sold separately, use PX9019 for English 68 73mm, PX9023 for BB30 PF30 or PX9022 for BB86 and PX9024 for T47 external BB tool sold separately, use PX8980 8981 Direct Mount 3 bolt for 1x chainring conversion is possible For additional Praxis 2x chainring options, use PX211* Works with 10 11 12sp