T4 Build: Clutch

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Richard and Pat
Posts: 887
Joined: Wed Sep 26, 2018 3:44 pm
Location: Biggleswade

T4 Build: Clutch

Post by Richard and Pat » Sat Jan 31, 2026 1:50 pm

question from a new member, Mark, who asks:
Re Clutch. I thought about replacing the whole assembly but they appear to be alarmingly expensive for the Stelvio 1200 NTX (about £1200).
So maybe just the friction plate? Are there any known issues with the pressure plates? Are you aware of any more cost effective options?
Also, do you know if any special (clutch alignment) tools are required?

peakrock
Posts: 245
Joined: Thu Sep 27, 2018 5:52 pm
Location: Wreningham

Re: T4 Build: Clutch

Post by peakrock » Tue Feb 03, 2026 10:01 am

Are you thinking of replacing the clutch because there is a known problem with it or because it seems like a good thing to do as part of the new build?

If the latter then it might be worth considering how many miles the donor bike has done and how many miles a year you would realistically use the Type 4. If the donor is low mileage and you would only do a couple of thousand miles a year in the Type 4 then you might well get many years of use out of the original clutch.

If you decide to overhaul the clutch then a new friction plate would most likely be all that you needed assuming the pressure plate surfaces were ok. You would also need a clutch aligning tool of some kind - a wooden dowel rod that fits in the flywheel bearing hole with masking tape wrapped round where it passes through the friction plate will work fine.

Something to note: I'm using a Norge 8v engine in my Type 4 build and had to remove the clutch assembly and flywheel and I found the small Torx button head bolts holding on the ring gear to be incredibly difficult to remove. I had to chisel them loose as they rounded off internally even with a good quality socket tool. So if you do your clutch it would be a good idea to get new ring gear bolts. Finally I just looked on Gutsibits and they appear to have a good second-hand Stelvio clutch assembly in case you need any bits.

Dave

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