GV125 evo cbs brakes

[hugh]

Hello , i am new here and would wonder if anyone has any info on the bleeding of the brakes on the new 125 bobber. No feel at all on the rear brake and it looks to be linked to the front caliper.The front works fine. Is there a special way of bleeding?

[♠️ M77]

You may just have air in the rear brake hoses that go to the “middle cbs box” that links both front and rear brakes.  You may have to bleed the whole system

OR , pump the rear brake only with a bleed kit from amazon until the air comes out. then close the bleed nipples,   pump the brakes a few times until you see pistons move on the rear one ,

If pistons move half way out, push them back in by hand, you will hear a “hiss” (faint hiss) possibly inside the master cylinder confirming air has been exhausted back  (reverse bleeding if you will!

Hope this makes sense

[hugh]

Yes thanks for your advice. There was no middle box. Just 2 hoses coming out of the rear master cylinder going to each caliper. A pig to bleed. Maybe down to the hose going to the front going quite high up to the head stock. I ended up opening both bleed nipples and using a syringe to push fluid from one bleed nipple to the other and happily now have a rear brake

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