BB7 road disc with MTB levers question?- Mtbr.com
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  1. #1
    mtbr member
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    BB7 road disc with MTB levers question?

    I have drop bars and ultegra shifter/levers but want to go flat bar. If I use my MTB brake levers, will I be ok?
    thanks

  2. #2
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    Quote Originally Posted by ol-crank
    I have drop bars and ultegra shifter/levers but want to go flat bar. If I use my MTB brake levers, will I be ok?
    thanks
    The brakes will work, but will require higher hand effort for the same braking power. If you have Avid SpeedDial levers you can adjust them for minimum cable pull to help a bit.
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  3. #3
    ~Disc~Golf~
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    no - not really
    It'll be ON/Off


    * edit...Shiggy, aren't the road BB7s less pull?
    so it would be LESS? hand effort?
    but yeah SD7's might help
    Honestly... ahh I give up

  4. #4
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    Quote Originally Posted by highdelll
    no - not really
    It'll be ON/Off


    * edit...Shiggy, aren't the road BB7s less pull?
    so it would be LESS? hand effort?
    but yeah SD7's might help
    it is simple leverage, and you need to remember it reverses at the input and output ends.

    Yes, the road version uses less cable pull. Levers with less pull have a higher mechanical advantage (MA) so use less hand effort. There is less MA at the caliper.

    "Standard" mtb levers move more cable. More cable pull = less mechanical advantage, more hand effort. V brakes and the mtn discs have higher MA at the caliper.

    Put a low MA lever with a low MA caliper and you get a high hand effort brake.
    mtbtires.com
    The trouble with common sense is it is no longer common

  5. #5
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    thanks for the input--I came home and I don't know where

    the SD-7 brake levers are now. I am thinking if their gone, I will buy new levers and would like to match up with the road calipers on the BB7s. Any suggestions for a light set of road levers for flat bar?

  6. #6
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    There are all kinds....

    of levers that will work with your BB7 Rs. Anything that is compatable with Cantilever and/or Caliper style brakes will have the correct lever pull ratio for your road brakes. Levers that come readily to mind are the Cane Creek Flat Top, Shimano R550 and R770 levers, and Tektro RT354 levers. If you pull a google for "road flat bar brake levers" you'll likely get more options. Bottom line is, you can use any MTB lever that is cantilever compatable.

    As a side note: There are even BMX levers that are compatable with canti and caliper style brakes as well. Most are bit more compact with shorter lever blades and work nicely for two finger braking.

    Good Dirt
    "I do whatever my Rice Cripsies tell me to!"

  7. #7
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    thanks again,

    lots of good choices there.

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