oversize tires/gears

[jhouse]

i changed the tires from a 31/1050 to 32/1150. is it necessary to change any of the gearing? it does not seem to cruise as well at high speeds.

 

[cruzerman350]

that small of a change i wouldnt think any gearing needs changing. im running 33x12.5 and mine cruises fine on the freeway. check out randy's ring and pinion, they have a calculator to determine how far off your final gearing is from stock now. what year is your cruiser?

 

[jhouse]

it is a 1979 (feb)

 

[camcruiser13]

nope i wouldnt sweat it

 

[cruzerman350]

according to the calculator theres only a 80 rpm difference at 65mph. thats nothing. im suprised you noticed it honestly

 

[camcruiser13]

im sure he didnt notice, maybe the wider tires is trippin him out

 

[Ralph]

It would be a waste of both time and money to replace gears for such a minor change in tire size. I jumped from 32" tires to 35" tires on my 75 cruiser without changing gears. But I have the 4.11 ring and pinions. So my advice is to keep it as is.

 

[Splash]

I think that would depend on whether you had the correct gears in the 1st place. Below is a link to a chart for selecting gears. It indiactes 4.11 or 4.27 with 32s.

The Ranger Station