Gs750 swing arm pivot

[Kevref]

Hi all i am finally making progress in my knowledge of what bits to swap etc to make a more up to date ride on a classic GS

so i am going with a GS750 (1977) frame .. 

start question for this is , can you advise is the swing arm pivot diameter the same as the bandit swing arm ? 
thanks 

[wraith]

Just looking on the bay b6 are the same as b12 20mm ?

So ever a top hat or a sleeve/tube to reduce the swing arm bearing size down to 15mm or drill out the frame pivot holes to 20mm.

I go for the sleeve way  if you don't need a small spacer each side of the swing arm if so then go for top hats.

[Paulm]

Sleeved top hat spacers in mine.

[wraith]

Been and checked the b6 arm in the gs550 frame, sleeve, as the swingarm fits just nicely 

[Kevref]

Thanks guys! Can some one recommend where  i can get the 20mm to 15 mm top hat reducers from? 

[Kevref]

Ok thanks.. i guess if the b6 swing arm slots straight in the gs750 frame with no need for spacers, then 20 mm od sleeves will be best 

[Paulm]

3 hours ago, Kevref said:

Ok thanks.. i guess if the b6 swing arm slots straight in the gs750 frame with no need for spacers, then 20 mm od sleeves will be best 

Try the arm in your in frame first,make sure it fits.

[Kevref]

Yes for sure! Apparently they are a straight slot in with no need for spacers on the gs750

[Kevref]

Tony where did you get the reducing sleeves made up? I presume the b12 pivot is the same size as the b6 … 20mm?

[Kevref]

Ok! Was wondering actually about possible wear as its aluminium ?

 

[Kevref]

Yes good idea 

thanks Tony , all useful info

[Kevref]

I will be taking off the rear footrest hangers .. 

[Kevref]

Tony just seen that you said 

the bearing doesn't ride on it as its still on the OEM bush/spacer, its just holding the swingarm in line. 
can you clarify ?

How are the bearings put to use with the 15mm pivot ? 

[Captain Chaos]

9 hours ago, TonyGee said:

a 400 katana with a 1200 bandit engine

Pics required

 

[LLafond]

On 10/31/2021 at 12:49 PM, Paulm said:

Sleeved top hat spacers in mine.

 

[LLafond]

On 10/31/2021 at 12:49 PM, Paulm said:

Sleeved top hat spacers in mine.

How did you get a spoked wheel on that? What hub did you use? 

[Paulm]

On 11/28/2025 at 1:26 PM, LLafond said:

How did you get a spoked wheel on that? What hub did you use? 

Z1000 hub