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Ships within 48 hours · Estimated delivery Sep 25 - Sep 30
ASTM Classification:
between the upper and outsole
These chainrings are for Shimano direct mount cranks
If you have a BB30 crankset (30mm diameter aluminum spindle) this measurement will determine whether it is a long or short spindle:
RockShox ZEB A1+ DebonAir+ Buttercup Air Spring Upgrade Kit - 160 mm ZEB A1+ Lumens Front-650 ASTM Classification:RockShox ZEB A1+ DebonAir+ Buttercup Air Spring Assembly Upgrade Kit 160 mm. The new DebonAir+ is built to strike the perfect balance of what riders really want: butter like small bump feel increased air volume to add support throughout the travel and higher overall ride height for more confidence when things get steep.
