This guide explains how to replace the stock Brembo rear master cylinder with a universal (Chinese) clone for a minimal cost.
The total cost of this conversion is less then the cost of replacing the seals on the stock Brembo which are now becoming very rare.
I cannot certify the quality or how long the aftermarket rear MC will last, again its a Chinese clone which is better then having no rear brakes at all (My current situation).
I would never recommend using non genuine parts for the front brakes but the rear in my opinion is not an issue due to its infrequent use.
Total cost of conversion if not using ABS is around $10-$15. If using ABS then around $25 should be expected due to the use of fitting reducers on the ABS pump.
Universal Master Cylinder
UKUSA
Thread Adapter M12x1 to M10x1 (For ABS users only)UKUSABraided Brake Line (Any brake line will do over 70CM, best to find one with a 90o Right angle, I found mine used for very cheap)UKBanjo Bolt M10 x 1 (ABS users only)
UKUSA(Cannot find any on Ebay, Maybe they are called something different over there)
1. Remove rear-set, four bolts total, don't forget the brake line, the brake sensor and the reservoir tube
2. Remove the existing Brembo Master cylinder, two bolts, one is under spring tension so remember to compress the spring so that it comes out straight.
3. Remove the existing ball-joint coupling on the inside of the brake lever using a 13mm spanner, we will no longer use it as the new MC has an internal one.
4. Remove the new master cylinder from the packaging and cut the threaded bolt in half using a hacksaw, Do not use an angle grinder as the heat will damage the seals.
5. Use a file to file down the end of the threaded bar and make sure it is smooth with no swarf.
6. Thread the bar into the threaded hole, spin the MC intil the rear holes line up and re-insert the bolts.
7. If using the an ABS system, remove the OEM steel brake line from the ABS pump, replace with a standard flexible brake line instead. You will need to now insert the M12x1 to M10x1 fitting reducer.
8. Fasten the brake hose to the ABS pump using a M10x1 Banjo bolt, fasten the other side to the rear MC using the supplied M10x1.2 banjo bolt.