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

Just gathering some data.

If possible could you please post your bottom bracket height floor to center of b.b shell, tyre size and frame.

I will be paying all contributors to this post with my own special currency

Thank you..

Will break out the ruler when I get home Tommy.

26.5cm from the floor to the centre of the BB.

Geoffrey Butler frame- 58cm.
700C wheels.

Thanks MA3K.

not sure what the hell the frame is but,

30cm floor to centre on a 54cm x 54cm frame 700x23cc tyres.

Thanks DAMMIT & Murtle

Hmm, mine seems rather low!

29.5cm on a 52cm CtoC Bob Jackson Vigorelli on 23c

large pompino (but with funny tight road fork, not the original):
278mm 700x23c

Chas Roberts Track, 58cm:
290mm 700x23c

I fucking love BB heights, I do.

and remember people, keep the bike perfectly upright, if you lean it even a tiny bit you'll get an incorrect reading.

Hmm, mine seems rather low!

fine for the road with 165mm cranks. (and even HH)

condor pistas are only about 270mm

fine for the road with 165mm cranks. (and even HH)

condor pistas are only about 270mm

Then I'm going to die- 170mm cranks.

Time to write my will- who wants what?

have you scraped a pedal yet?

no? then you're ok!
yes? did you fall off?
no? see above
yes? are you dead yet?
no? see above

etc...

Red hack bike. 28 cm 25 mm front tyre 23 mm rear tyre.

Blue fixed single speed mbt 30.5 cm 26" wheels (559mm ISO) 2.2" tyres.

Argon 18 medium (54-56cm)

BB height 295mm (with 700c / 23 tyres)

270mm 23c Condor Pista 05 55cm
280mm 25c Bridgestone Track 57cm
270mm 28c Raleigh Junk Bomber 57cm

Cove is inaccessible, and Steamroller is just a frame at the moment.

Hmm, mine seems rather low!

What are you on, a scraper bike ?

270mm 23c Condor Pista 05 55cm
280mm 25c Bridgestone Track 57cm
270mm 28c Raleigh Junk Bomber 57cm

Cove is inaccessible, and Steamroller is just a frame at the moment.

You can, if you can be bothered, work it out on a frame by measuring how far below the rear drop out the centre of the BB is - then take this figure off half the circumference of a wheel + tyre.

300mm : Cannondale Track '94 56cm

*317mm, large Cannondale Rush, 26" Continental Vertical Pro's.
280mm, 58cm Cannondale SystemSix, 700 X 23C Conti Attack/Force.
295mm, large Dyno beach cruiser, 26" something or other tyres.

*But probably rather different when I am on it.

What are you on, a scraper bike ?

I'll let you know!

You can, if you can be bothered, work it out on a frame by measuring how far below the rear drop out the centre of the BB is - then take this figure off half the circumference of a wheel + tyre.

Yeah technically b.b drop is the important number in terms of frame design as it's not effected by tyre size.

Thanks for all the numbers people. Scratched my itch for numbers.

do you need any more?

267mm 700x23 conversion. lowest so far. do i win?

5'6"
It is hanging up though...

Mercian road/path 56cm
276mm
27 x 1 1/8

Sparton track 54cm
278mm
700 x 23