i was getting clutch drag with new surflex plates and ended up subing one new friction plate with a used one and problem solved, nice and light and more importantly the correct pushrod clearance. ...snicks nicely into neutral at a standstill like AMC box should 👍
When I had problems with stack high, I mixed used and new plates and worked well. Additionally I have use narrowed steel plates, later found out to be same size than yours. I have narrowed also triumphs and other bikes steel plates/or friction plates, needing less spring pressure and plates release easy after winter "hibernation" ... helps cable life and you fingers too 😁
Just put the 3mm steel plate in mine today to replace an original plate and a 1mm shim plate I cut out of a piece of stainless. To get the stack height correct and have light operation at the lever. Time will tell.
I have run a few configurations in my clutch over the years, and regarding the thin plain plates, I have had them in my clutch for approximately 8 to 10 years and 20,000 miles and they have been without problem. Regarding the Barnett plates, I ran these for a year and they were excellent except for one problem in my experience, which was the "teeth" on the plates with friction material started to wear, otherwise they were excellent. Possibly this has been resolved with the new spec ones?
Is it true that the original clutch plates are designed for a slight amount of slippage at 100 mph and because of this using aftermarket plates on the road can cause mainshaft breakages? I was told this years ago so i still have a new set of barnetts in my spares.
To be honest, we don't know, the Barnett plates were not original, but are very good clutch plates feel free to fit them. The latest 850 Barnett plates are the correct thickness for the 850 direct replacements for the sintered versions.
Very interesting but I'm surprised that you are selling products under the Andover Norton name that you don't know how good they are or how long they will last. Perhaps you need a works testbed continuously ridden by your employees to test these new products.
Ash hasn’t used the parts, he says though “so I don’t know how well they perform or last. However, the High Torque friction plate is all that is available these days, the radial narrow steel plate we sell lots of them and have had no complaints, so assume they work fine, but again, I have not used them myself. The original sintered 850 plates are good for over 50,000 miles, I still have my originals fitted.”
i was getting clutch drag with new surflex plates and ended up subing one new friction plate with a used one and problem solved, nice and light and more importantly the correct pushrod clearance. ...snicks nicely into neutral at a standstill like AMC box should 👍
When I had problems with stack high, I mixed used and new plates and worked well. Additionally I have use narrowed steel plates, later found out to be same size than yours. I have narrowed also triumphs and other bikes steel plates/or friction plates, needing less spring pressure and plates release easy after winter "hibernation" ... helps cable life and you fingers too 😁
We're all for saving fingers :-)
Just put the 3mm steel plate in mine today to replace an original plate and a 1mm shim plate I cut out of a piece of stainless. To get the stack height correct and have light operation at the lever. Time will tell.
Are you running a five disc or four disc clutch? And what was your stack height?
Those clutch plates seem to be a victim of hit or miss engineering. What kind of guarantee do they have?
I have run a few configurations in my clutch over the years, and regarding the thin plain plates, I have had them in my clutch for approximately 8 to 10 years and 20,000 miles and they have been without problem.
Regarding the Barnett plates, I ran these for a year and they were excellent except for one problem in my experience, which was the "teeth" on the plates with friction material started to wear, otherwise they were excellent. Possibly this has been resolved with the new spec ones?
The aluminium sandwich plates were used on centres that were originally not case hardened, but we do know they tend to wear out on the teeth first.
Is it true that the original clutch plates are designed for a slight amount of slippage at 100 mph and because of this using aftermarket plates on the road can cause mainshaft breakages? I was told this years ago so i still have a new set of barnetts in my spares.
To be honest, we don't know, the Barnett plates were not original, but are very good clutch plates feel free to fit them.
The latest 850 Barnett plates are the correct thickness for the 850 direct replacements for the sintered versions.
Very interesting but I'm surprised that you are selling products under the Andover Norton name that you don't know how good they are or how long they will last. Perhaps you need a works testbed continuously ridden by your employees to test these new products.
Ash hasn’t used the parts, he says though “so I don’t know how well they perform or last. However, the High Torque friction plate is all that is available these days, the radial narrow steel plate we sell lots of them and have had no complaints, so assume they work fine, but again, I have not used them myself. The original sintered 850 plates are good for over 50,000 miles, I still have my originals fitted.”