Watch: How to fit lower gears on your bike Jun 20, 2017 Our mechanic Al Vines shows you how to fit lower gears on your bike to make climbing easier11-28 cassette as standard. The Di2 performs flawlesslyOur mechanic Al Vines shows you how to fit lower gears to your bike to make climbing easier Tags: Product News Videos Share 0 Share on Facebook Tweet Tweet on Twitter +1 +1 on Google Plus
