These are direct replacement end caps for our front ( and ) and rear (, , and ) quick release cassette hubs (Year 2015 - present). All items are individual units.
 

SPECIFICATIONS
Front end cap material	7075 Aluminum (Classic/Pro)
Rear end cap material	Stainless steel (Classic), 7075 Aluminum (Pro)
Front end cap weight 100 mm spacing	Classic/Pro (5 grams)
Rear drive side end cap weight (Shimano)	Classic (13 grams), Pro (5 grams)
Rear drive side end cap weight (XDR)	Classic (15 grams), Pro (6 grams)
Rear non-drive side end cap weight 130 mm spacing	Classic (28 grams), Pro (12 grams)
Rear non-drive side end cap weight 135 mm ISO disc	Classic (28 grams), Pro (12 grams)
Materials	All of our manufactured items are machined out of US-produced materials.

 
INSTRUCTIONS