Know if 120/70-17Rear fits 1980 GS1000GLT?

[Declan_Berkeley]

Does anyone know if a 120/70-17 rear Bridgestone tire will fit on a stock 1980 GS1000GLT Rear 4.5"x17" Rim? Matthew 510-860-7675 maxam_building@yahoo.com

[Nessism]

Does anyone know if a 120/70-17 rear Bridgestone tire will fit on a stock 1980 GS1000GLT Rear 4.5"x17" Rim? Matthew 510-860-7675 maxam_building@yahoo.com

A taller profile tire would be more appropriate in my opinion - 120/90-17

[bwringer]

I thought the L shafties all had 16 inch rear wheels.

The proper tire size would be 130/90-16 (or 130/90-17 if it really is somehow a 17 inch rear). In the old-style inch sizes still used on some Dunlops, that would be MT90-16. (You didn't ask, but the front would be a 100/90-19, AKA MM90-19)

The 120/70-17 tire is all wrong for your rim. In fact, it sounds like a radial front tire size, so I don't know how much more wrong it could be.

Proper tire sizes are critical on bikes, far more so than on cars or trucks. The wrong tire size and/or aspect ratio will goof up the profile of the tire and cause handling problems on a bike.

[SqDancerLynn1]

That 70's series is probably a radial tire DON'T mix types, probably requires a wider rim

[Grandpa]

I thought the L shafties all had 16 inch rear wheels.

The proper tire size would be 130/90-16 (or 130/90-17 if it really is somehow a 17 inch rear). In the old-style inch sizes still used on some Dunlops, that would be MT90-16. (You didn't ask, but the front would be a 100/90-19, AKA MM90-19)

The 120/70-17 tire is all wrong for your rim. In fact, it sounds like a radial front tire size, so I don't know how much more wrong it could be.

Proper tire sizes are critical on bikes, far more so than on cars or trucks. The wrong tire size and/or aspect ratio will goof up the profile of the tire and cause handling problems on a bike.

bwringer, the 1980 "L" big shafties had 17-in rear wheels. Later ones had 16's.

I agree that this rider should get 130/90-17 rear tires only.

[bwringer]

bwringer, the 1980 "L" big shafties had 17-in rear wheels. Later ones had 16's.

I agree that this rider should get 130/90-17 rear tires only.

I learn something every day, whether I want to or not! \\/

[Nessism]

What size is the rear wheel? I went with a 120/90-17 rear on my 550T because the wheel is only 2.15" wide.