Rear tire size

garylh2006

New member
No, but these Diablo rosso tires SUCK. I'm sliding everywhere. If I'm accelerating and touch a painted line anywhere it spins out. I run battleaxes on my 3 other sport bikes, and know how well they hold the road. But, rear tire sizes aren't as narrow as 140. Just seeing if I need to trim the rear shield.
 
I have a 140/70 r 17 on my 2021 SR, it is kinda close on the belt guard. I agree, if the road is slightly damp, the painted lines are a challenge. Ima do some figgerin an see how close I can get to the belt guard.

(2 refreshin beverages later)
What I measured is a 5 mm gap so max would be a 150, and that would leave NO room for flexing , a 55 is gonna throw your speedo off and possibly odo also , (mpg should remain the same :) though ) the belt guard doesn't look that hard to trim but taking 15 mm off it would weaken it considerable, so compensation would hafta be made for that,
Seein as how the Zero is a fair weather bike (not waterproof) I think I will just stick with my slippery tire.
Oh, i did read something about traction control capability if you got a phone that talks to your bike, (my phone won't even talk to ME) or something like that , it should stop SOME of the white line problem on accel, but not in cornering.

now after thinkin a bit, the tire is kinda odd shaped, sidewall is wider at the chain guard than it is at the tread/contact point, maybe a different make of tire wouldn't have that shape and have a wider tread aspect (like a darkside)
 
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CagivaRider

New member
I'm not sure my SR is a fair weather bike. I ride it yearround in Seattle rain with no issues at all. I did have to put the auxiliary rear fender on it.
 

SHAG

New member
I couldn't find a good replacement rear tire for my FXE in the 140/70/17, so when the time comes, I'm going to install a 150/70/17 Metzler Tourance that I run on my GS. It is a little wider and taller . We'll see how it goes! It will definitely be 5 mm closer to the belt 😬
 
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