CB Two Fifty (MC26) Wider Rear Tyre

gazzafield · L Plate Warrior Joined: 12 Apr 2019 Karma :

I am looking at fitting a 130/90-16 rear tyre on my CB Two Fifty (MC26) in place of the standard size 120/90-16. This is not just to have a fatter rear tyre but to allow me to fit a Bridgestone BT45.

Has anyone else fitted a slightly bigger rear tyre onto one of these bikes? Any issues?

moonzoomer · World Chat Champion Joined: 01 Jul 2012 Karma :

Just fit a 120/90/16 BT45, seems to be the easier solution.

gazzafield · L Plate Warrior Joined: 12 Apr 2019 Karma :

Certainly would be. Couldn't agree more. If Bridge stone did a 139/90-16 REAR tyre then I would.

moonzoomer · World Chat Champion Joined: 01 Jul 2012 Karma :

139/90/16??? Bridgestone do make a BT45 120/90/16 tyre which is according you the standard size.

gazzafield · L Plate Warrior Joined: 12 Apr 2019 Karma :

9? 0? What's fat fingers between friends?

Bridgestone do indeed make a 120/90-16 tyre. Just not a rear one.

Courier265 · World Chat Champion Joined: 01 Oct 2017 Karma :

Sadly tyre choices for the CB250 are very limited, the only decent rear tyre would be a City Demon.

Fitting a larger tyre is not a good idea...
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CBF500 - 2 x Inazuma 250

moonzoomer · World Chat Champion Joined: 01 Jul 2012 Karma :

gazzafield · L Plate Warrior Joined: 12 Apr 2019 Karma :

Not a BT45.

https://www.bridgestone.com/products/motorcycle_tires/products/detail/pr014/

Robby · Dirty Old Man Joined: 16 May 2002 Karma :

Going from a 120 to a 130 on that bike is unlikely to cause any trouble, it's not like its some highly strung sports bike that would be sensitive to minor changes.

As long as you have 5mm clearance from the swingarm and chain, go for it. I would also go for the 130/80 if the original is a 120/90, to get about the same circumference.