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View Full Version : BMW ATE 40mm caliper wanted


Voltaire
1st April 2013, 18:40
After a 40mm ATE caliper for a 1976 BMW R90, they were fitted to 750's, 900's and 1000's between 1976 and 1980.According to the BMW experts they are the most useless brake caliper in the world, my bike currently has only one so I figure two should be twice as good.
there are two types the 38mm one and the 40mm. The 40mm one has 40 stamped on it, the 38 has nothing.
Picture shows them on my race bike, I need one for my road bike.

cheers

280711
Kickaha
1st April 2013, 19:45
my bike currently has only one so I figure two should be twice as good.

Two times nothing is still nothing
Voltaire
1st April 2013, 20:00
Two times nothing is still nothing

I think a 4 pot floating disc would look a bit odd on a 76....
Kickaha
1st April 2013, 20:04
I think a 4 pot floating disc would look a bit odd on a 76....

Form follows function (http://en.wikipedia.org/wiki/Form_follows_function)

It that to fit twin discs or staying with a single?
Voltaire
1st April 2013, 20:16
twin discs for the 'new' R90/6

280717
sidecar bob
2nd April 2013, 19:12
My old BMW has a 38 on one side & a 40 on the other & the only person that ever picked that was you.
I dont think it makes much difference.
I have a number of those calipers, size unknown at this stage. I will have a dig around in the railway wagon shed tomorrow & let you know whats there.
Voltaire
4th April 2013, 19:17
My old BMW has a 38 on one side & a 40 on the other & the only person that ever picked that was you.
I dont think it makes much difference.
I have a number of those calipers, size unknown at this stage. I will have a dig around in the railway wagon shed tomorrow & let you know whats there.

Cheers, the 38's have no markings and the 40's have 40 stamped on them.
igor
6th April 2013, 11:14
My old BMW has a 38 on one side & a 40 on the other & the only person that ever picked that was you.
I dont think it makes much difference.
I have a number of those calipers, size unknown at this stage. I will have a dig around in the railway wagon shed tomorrow & let you know whats there.

which ison what side anddoes it make it brake to the 40 side better
sidecar bob
6th April 2013, 12:01
which ison what side anddoes it make it brake to the 40 side better

The 40 is on the right. The bike is exclusively a classic race bike & I wouldnt have known there was any difference until volty pointed it out.
Still need to check the shed mate, been absolutely flat out, might head up there later today.
sidecar bob
12th April 2013, 16:26
Yep, ive got two 40's, are they sided or the same?