GSXR 1000 rim widths

C

Clumber981

Full member
Can someone confirm these are 2.75" front and 4.00" rear.  Looked at several threads but can't see that detail for looking
Cheers
 
GSXR 750 rims are 2.5" x 18" front and rear is 3.5" x 18"
GSXR 1100 rims are 2.75" x 18" front and rear is 4" x 18"

if you buy the front rims with brake rotors the 750 uses 300mm fixed rotors and the 1100 used 310mm floating

 
Ralph,
I have a good rear rim here you can have- not sure if its GSXR 750 or 1100

Neil
 
It's a bit confusing because there were some "Limited Edition" 750s that had 2.75/4.00 wheels, and it was also a popular mod in the mid-80s to fit 1100 wheels to hot rod 750s. Went with the big hair, I guess. And, I've now come across 2 authenticated instances (seen with my own eyes) of 1100s with 2.50/3.50 wheels, maybe the lighter weight was seen as being worthwhile?

Ken
 
thanks everyone, that clarifies it.
I certainly remember when the 750's came out there were lots of broken wheels at TT but that's probably not the average test circuit (especially in those days, road surface is much better now!)
Ralph
 
This may help.

Rear wheels
Model Wheel Size Sprocket Carrier Disc outside diameter
1985-87 750 18x3.5" 5-bolt 8.675" (220mm)
1986-87 1100 18x4.0" 5-bolt 8.675" (220mm)
1988 1100 18x4.5" (3-spoke type) 5-bolt 8.675" (220mm)
1988-89 750 17x4.5" 5-bolt 9.5" (240mm)
1989-90 1100 17x5.5" 6-bolt 9.5" (240mm)
1990-91 750 (U.S. '92 same) 17x5.5" 6-bolt 9.5" (240mm)

Front wheels
Model Wheel Size Axle Size Disc Outside Diameter
1985-86 750 18x2.5" 15mm 11.8" (300mm)
1986 1100 18x2.75" 15mm 12.2" (310mm)
1987 750 18x2.5" 17mm 11.8" (300mm)
1987 1100 18x2.75" 17mm 12.2" (310mm)
1988 1100 18x2.75" (3 spoke type) 20mm 12.2" (310mm)
1988-89 750 17x3.5" 20mm 12.2" (310mm)
1989-90 1100 17x3.5" 20mm 12.2" (310mm)
1990-91 750 (U.S. '92 same) 17x3.5" 20mm 12.2" (310mm)


 
Kiwi Laverda said:
This may help.

Rear wheels
Model Wheel Size Sprocket Carrier Disc outside diameter
1985-87 750 18x3.5" 5-bolt 8.675" (220mm)
1986-87 1100 18x4.0" 5-bolt 8.675" (220mm)
1988 1100 18x4.5" (3-spoke type) 5-bolt 8.675" (220mm)
1988-89 750 17x4.5" 5-bolt 9.5" (240mm)
1989-90 1100 17x5.5" 6-bolt 9.5" (240mm)
1990-91 750 (U.S. '92 same) 17x5.5" 6-bolt 9.5" (240mm)

Front wheels
Model Wheel Size Axle Size Disc Outside Diameter
1985-86 750 18x2.5" 15mm 11.8" (300mm)
1986 1100 18x2.75" 15mm 12.2" (310mm)
1987 750 18x2.5" 17mm 11.8" (300mm)
1987 1100 18x2.75" 17mm 12.2" (310mm)
1988 1100 18x2.75" (3 spoke type) 20mm 12.2" (310mm)
1988-89 750 17x3.5" 20mm 12.2" (310mm)
1989-90 1100 17x3.5" 20mm 12.2" (310mm)
1990-91 750 (U.S. '92 same) 17x3.5" 20mm 12.2" (310mm)
Click to expand...

It should be noted that the later front discs for the 17" wheels do not fit the 18" wheels due to a different bolt centre spacing.  All 5-bolt rear discs can be interchanged.  The discs got thinner and thinner over the years, late 90's were all 220mm and quite lightweight.  The 240mm rear discs are a better option for a heavy tourer, won't be as over-worked as the smaller one, but still prone to fading while charging down an alpine pass. :o  The 20mm Laverda front axle can easily be adapted by swapping the bearings and distance tube and adding a couple of small spacers under the bearings.  This almost allows a plug and play fitment... speedo drive is a topic of its own.

piet
 
You must log in or register to reply here.
Back
Top