Under tank master cylinder and reservoir

17mm, ATE, twin disc, from 09/1973 to 09/1980
SKU
BRR34379-1
Associated BMW part
34311234379
Good stock
£175.00 £145.83

These master cylinders have been cleaned and the the piston barrel has been re-sleeved.

A new overhaul kit, BRA34927, has also been fitted.

Please Note: These do not come with the reservoir or the pushrod, BRA34471 & BRA33309.

Twin disc bikes only. This item can be used to retrofit a twin disc setup to those bikes which originally only had a single disc.

You may also wish to consider a conversion to a Brembo handlebar master cylinder, please ring to discuss. 

The 17mm ATE undertank master cylinder is no longer available from BMW but the 16mm option is a direct replacement. 

More Information
Weight 0.700000
Universal Part No
Condition Used
Associated BMW part 34 31 1 234 379
Customer Questions
If I was to use a brembo style master cylinder what additional fittings would I need. I already have a twin disc setup on the front end. I would like to do away with the under tank master cylinder. Thanks in anticipation.
Ideally we would need to know your bikes frame number and some pictures of your current set up, but it sounds like you have a pre 1981 model with twin discs. 

The parts would be brand new (sorry, we've sold out of a lot of these parts from...
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