Pedal stack height list for SPD pedals?
#1
Thread Starter
Newbie
Joined: Aug 2017
Posts: 13
Likes: 10
From: Cedar Rapids, IA
Bikes: 1991 Schwinn Frontier, 1990 Schwinn Crisscross, 1991 Schwinn Crisscross x 2
Pedal stack height list for SPD pedals?
To help make up for a leg length discrepancy (lower leg 1.25" difference) I'd like to go with a SPD pedal with a higher stack height on the shorter leg side (fyi I have other adjustments to help with the difference (seat slightly angled to longer leg side, 2 mm shim under cleat, cleat on short side slightly more towards toe, and insert in shoe)).
So, I'm just trying to get a little closer to 16 mm total (roughly 1/2 of the 1.25" discrepancy) Currently I'm running Shimano SPD M520s on both sides. The only stack height list I could find is the cyclecycleinfo one (sorry can't post link as I'm a newb), but that doesn't have SPD pedals. Speedplay SYZR looked great but currently they are out of production. One other potential option for a few mm's looks to be the Shimano M505's (sorry also can't post pic) as it has a bracket on top of the spindle. I'm just guessing as I can't find a list of specific list anywhere - would anyone be able to point me in the right direction? .
Thank you for your expertise!
So, I'm just trying to get a little closer to 16 mm total (roughly 1/2 of the 1.25" discrepancy) Currently I'm running Shimano SPD M520s on both sides. The only stack height list I could find is the cyclecycleinfo one (sorry can't post link as I'm a newb), but that doesn't have SPD pedals. Speedplay SYZR looked great but currently they are out of production. One other potential option for a few mm's looks to be the Shimano M505's (sorry also can't post pic) as it has a bracket on top of the spindle. I'm just guessing as I can't find a list of specific list anywhere - would anyone be able to point me in the right direction? .
Thank you for your expertise!
#2
Newbie
Joined: Jan 2025
Posts: 2
Likes: 0
To help make up for a leg length discrepancy (lower leg 1.25" difference) I'd like to go with a SPD pedal with a higher stack height on the shorter leg side (fyi I have other adjustments to help with the difference (seat slightly angled to longer leg side, 2 mm shim under cleat, cleat on short side slightly more towards toe, and insert in shoe)).
So, I'm just trying to get a little closer to 16 mm total (roughly 1/2 of the 1.25" discrepancy) Currently I'm running Shimano SPD M520s on both sides. The only stack height list I could find is the cyclecycleinfo one (sorry can't post link as I'm a newb), but that doesn't have SPD pedals. Speedplay SYZR looked great but currently they are out of production. One other potential option for a few mm's looks to be the Shimano M505's (sorry also can't post pic) as it has a bracket on top of the spindle. I'm just guessing as I can't find a list of specific list anywhere - would anyone be able to point me in the right direction? .
Thank you for your expertise!
So, I'm just trying to get a little closer to 16 mm total (roughly 1/2 of the 1.25" discrepancy) Currently I'm running Shimano SPD M520s on both sides. The only stack height list I could find is the cyclecycleinfo one (sorry can't post link as I'm a newb), but that doesn't have SPD pedals. Speedplay SYZR looked great but currently they are out of production. One other potential option for a few mm's looks to be the Shimano M505's (sorry also can't post pic) as it has a bracket on top of the spindle. I'm just guessing as I can't find a list of specific list anywhere - would anyone be able to point me in the right direction? .
Thank you for your expertise!
#3
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Joined: Jul 2006
Posts: 4,287
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Shimano lists the stack height for their current production pedals here: https://productinfo.shimano.com/en/spec/pedal-pedal-spd
Quick look says they range from 15.1mm - 18.3mm
ETA: Oh wow this is an old thread, oh well still helpful as no one was able to answer his question 4 years ago.
Quick look says they range from 15.1mm - 18.3mm
ETA: Oh wow this is an old thread, oh well still helpful as no one was able to answer his question 4 years ago.




