I run a 12 / 48 and have had no issues with swing arm wear. Top speed is 120 km/ h 12 O'clock labs adjusted and gps. I would like to try a 50 . I run 14 on the front if I am on the road a lot.
have you tried the 50 yet i am wanting to try 13-54 and they are pretty much the same ratio just another way of getting it.
indypup
Subject: Re: 13/52 comments Tue Aug 26, 2014 10:44 pm
I'm running 13/54 with no problems with rear chain guard. I have my dirt and sumo wheels setup the same so I can use same chain.
Here's some pics:
indypup
Subject: Re: 13/52 comments Tue Aug 26, 2014 10:47 pm
I do hit the rev limiter in 6th though with sumo wheels. I've never tried to hit rev limiter with dirt wheels.