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PostPosted: Sun Aug 05, 2012 5:29 pm 
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Joined: Wed Oct 31, 2007 10:32 pm
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Location: Los Angeles / Glendale, California
Fellow WW, need some help here:

Could someone take some measurements of the holes on a Speedplay specific (4-hole) shoe?

Working on a small project and I need to know the locations of the holes relative to each other, on center.
Metric dimensions preferred.

Thanks in advance!

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PostPosted: Mon Aug 06, 2012 3:39 am 
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Location: Milton, Canada
I would do this if I had a set of accurate digital callipers to take the measurements for you. Unfortunately I only have rulers. If no one else has a more accurate way of doing this I would be happy to take some measurements tomorrow.


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Posted: Mon Aug 06, 2012 3:39 am 


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PostPosted: Mon Aug 06, 2012 5:40 am 
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Location: Los Angeles / Glendale, California
MM would be fine, so if you've got a ruler with metric that would work too!
I really appreciate this!

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PostPosted: Mon Aug 06, 2012 2:16 pm 
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Location: it's raining, it must be uk
haven't got anything to measure true c-c, but i put some screws in, did o-o and subtracted diameter...

front holes 17.5mm c-c

rear holes 23.8mm c-c

front-rear 55.6mm c-c

the holes are symmetric wrt the front-rear centreline of the cleat plate

having said that, from a quick check with a ruler, i think their native dimensions are probably based on 1/16", so the respective lengths become

11/16"
15/16"
2 and 3/16"


Last edited by sungod on Mon Aug 06, 2012 2:24 pm, edited 1 time in total.

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PostPosted: Mon Aug 06, 2012 2:19 pm 
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Thanks! Super helpful! :thumbup:

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PostPosted: Mon Aug 06, 2012 8:18 pm 
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sungod wrote:
having said that, from a quick check with a ruler, i think their native dimensions are probably based on 1/16", so the respective lengths become

11/16"
15/16"
2 and 3/16"


Actually, Speedplay uses the Time TBT 4 bolt pattern, which is in metric units. Dimension of the Time/Speedplay bolt pattern (as well as all the other common bolt patterns) can be found in Sutherland's Handbook:

http://www.sutherlandsbicycle.com/pedals.pdf


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Posted: Mon Aug 06, 2012 8:18 pm 


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