What is your bottom bracket height? (floor to center)

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  • CAN ANYONE ASSIST WITH THIS: my hillbrick has a BBH of 300 which works perfectly on the boards. my NAG is 280 and i am concerned that this may not be enuff.... i assume kierin track banking is not a severe as an indoor velo??

    i haven't been out on the boards with the NAG yet....maybe its a case of sucking it??

    Here's the general consensus (as I see it).

    Put your crank arm at 90° / perpendicular to the road /pointing straight down, Lean your bike over until the pedal touches the ground - even taking into account shoe width and bumpy uneven roads in most cases you have to lean the bike over at a fairly ludicrous angle before you pedal strike - an angle where the tyre contact patch will fail you before the pedal gets to kiss the ground.

  • Here's the general consensus (as I see it).

    Put your crank arm at 90° / perpendicular to the road /pointing straight down, Lean your bike over until the pedal touches the ground - even taking into account shoe width and bumpy uneven roads in most cases you have to lean the bike over at a fairly ludicrous angle before you pedal strike - an angle where the tyre contact patch will fail you before the pedal gets to kiss the ground.

    You are entirely correct, but on the track it's a very different story.

  • You are entirely correct, but on the track it's a very different story.

    Very true.

  • My Mercian's BB height isn't all that high, 280 IIRC, and I still get around HH OK with 172.5 Pistas... Meh... :S
    Different story at Calshot, I'm sure...

  • hmmm, the track i ride is 44 deg, guess i do the 'tynan' test and utilise a protractor to gauge

  • 280mm or 11 inches is kind of an old school standard hight for track bikes, i think it is also what they call 'manchester spec'. I have ridden 280mm BB hight on newport and calshot, including a match sprint with loads of dicking about on newport. If you run 165s you'll be fine (you'll probably be fine on 170 too)

  • do ya know the track angle of those tracks?
    here's my local:

  • Dude, you could look for yourself, it is on the internet!

    Newport is about 42-43 and calshot is over 46 I believe. As I said, you will be fine. 11 inches is 'track spec', the six day riders use bikes with an 11 inch BB hight and they ride tracks over 60 degrees.

  • thanks mate

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What is your bottom bracket height? (floor to center)

Posted by Avatar for TheBrick(Tommy) @TheBrick(Tommy)

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