Headset Gear change shims

[tippo88]

I'm fitting a new gear change which I bought from beedspeed. It's a good fit on the handlebar but neither the large bush (a brass MB one) nor the thin L shaped one fit into the gear change casting.
I was reading on the Scootrs site that their gear changes don't need the bushings as they are made to better spec than the originals.
Am wondering if the beedspeed unit I have is designed to run without shims or whether I need to take the dremel to gear change casting to make the L shaped one fit in the gear change casting and to the large brass to make that fit?

Thanks
Tippo

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[tippo88]

Bump

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[DigDug]

A picture would help - I don't understand what "bushes" you are referring to.

[Daggs]

I'll try and help 'Tippo'
In recent months I have used two remade gearchange units. Like you I found the large nylon bush wouldn't fit. After some headscratching i decided it wasn't required in a re-made, probably far-east, part. So in both cases I fitted them without the large nylon bush. They feel perfectly O/K and work fine.
In both cases the thin 'L' shaped shim fitted fine without any fettling.

[tippo88]

Thanks Daggs. On mine neither the larger in my case brass bush fits nor the smaller L shaped one. Maybe I'll make the L shaped one fit so it looks correct and forget about the large one.

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[wack 63]

I dremelled a rebate in a ScootRS 5 speed changer so I could fit the shim but there's no rebate for the large bush to be used. It works fine with no slop.

[DigDug]

A picture paints a thousand words.

[tippo88]

Thanks all! I've cut a rebate for the shim and as I was at the machine shop today have had the brass bush cut down so it fits. Will see if works better with or without the bush.

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[Daggs]

Interestingly (or perhaps not) I fitted one of these gear changes yesterday and contrary to my earlier comments This time the 'L' shaped shim wouldn't fit either. I fettled it to fit, didn't bother with the big bush and it works fine..........