new here i am 49 and fat i drive in town 55mph max and trailswould like to go with a new chain for a 14-47 set up
1 what chain 520 xring D.I.D renthallor cheap oring
2 rear sprocket brand
3 chain length for 14-45 108?
4 chain length for 14-47 ?

 

I bought a 110 DID 520v for a 45t rear sprocket and had to take 2 links out. My adjusters were out to #4.5 with the new chain. You may be able to get a 47t with a 108 link chain, but if you have a grinder I would opt for the 110 link just to be safe. Unless someone else had sucess with a 108. Use any rear sprocket for the 300.

 

Hey Sheena. I run 14/48 with a 110.