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General Category => General Discussion => Topic started by: dave48 on September 22, 2016, 12:17:59 PM

Title: Front Brakes
Post by: dave48 on September 22, 2016, 12:17:59 PM
I’m new to the forum. I recently acquired a 1975 850T and it needs front brake parts. I’ve searched FAQ  but can’t determine what front caliper is stock. Is the stock front caliper an F08 or F09? The one I have has two bleed ports.
Also, what’s the difference between the 08 and 09? And are the parts interchangeable?
Thanks - Dave
Title: Re: Front Brakes
Post by: canuck750 on September 22, 2016, 12:21:47 PM
8's, MG Cycle has parts and complete calipers. Unless you care about keeping the stock dual bleeder caliper I recommend buying a new caliper, hardly any difference in price by the time you replace the pistons, seals, clips and pads.
Title: Re: Front Brakes
Post by: Antietam Classic Cycle on September 22, 2016, 12:31:53 PM
The F08 is original, but if you still have the original 15 mm master cylinder, the F09 is a good upgrade for improved power and feel. With the F08, lever feel is very "wooden" and you need a very strong pull to achieve much braking at all.

The difference between the F08 and F09 is the piston diameter, 38 mm vs. 48 mm respectively.