Gebhardt rock ring 130mm BCD, material: 2017-T4 dural aluminium, black anodised, 3.5mm thick. 9mm chainring bolts are required to fit the rock ring and chainring to the crank. Please choose size according to the number of teeth of the chainring to be covered.
Bolt circle diameter: 130mm
Versions available immediately: 42T and 44T
On request we can also order this rock ring in versions not listed in dropdown (between 38 and 66 teeth) directly from Gebhardt. We can also order it in silver. Delivery time is approx. 3-5 weeks. If you are interested, please mail us.