I just finished building my new rockman kortz. It's a little bit heaver than my slate at 8.78kg (slate was 8.5). I had my first ride on the bike today, and it feels amazing. Despite the longer wheel base, the bike feels shorter than...
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this is not true. the rb lever has a lot more power than a standard magura lever, so without the booster it is a little bit mushy. i did try the frame without. the brake works much better with the booster.