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Speed Skating Forum Most of the discussions in this forum will be about inline speed skating but discussions about ice speed skating and quad roller speed skating are also welcome.

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Old December 8th, 2017, 01:53 PM   #1
reely?
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Default EO 3x125 pitch and deck height

I'm having a new boot made, to confirm measurments for the shoe make I found the pitch of the EO is only 9mm compared to the standard 12mm of most of the metal frames on the market. This can put undue stress on the boot/frame if you do not use the shims. Another observation is that the rear deck height of the 12.8" is 64mm compared to the 13" M2s 60mm, -9mm for the front deck on both frames. I'm still an EO fan and do like the lower pitch, but wonder why they lowered the deck? It forces you to use the shims even if you have higher arches.

Just sharing.


Thanks d
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Old December 8th, 2017, 02:24 PM   #2
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I have mounted both a 13.2" and a 12.8" 3x125 EO frame to my 165mm mount custom Simmons boot. I had to use the Simmons tool to push my arch up to clear the center wheel without using any shims when I used the 13.2" frame. The center wheel clearance with that frame once I pushed the arch up was 1.5mm.

I ended up trading that frame for the 12.8 that I now use for outdoor skating. And with the 12.8" frame, I now have well over 3mm of clearance. So it looks like different frames have different heights.
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Old December 8th, 2017, 03:04 PM   #3
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Not sure where you are getting your data, but most of the places I have found the deck height data for EO lists it as 48F/59R which is still taller than I need with my boots. My converted 5 wheel frame is 46/57 and the middle wheel still clears without shims.

http://www.online-skating.com/articl...ng-frames.html

https://sk8skoolonline.wordpress.com...higher-really/
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Old December 8th, 2017, 03:11 PM   #4
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https://www.facebook.com/photo.php?f...7&l=57d9226ca4
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Old December 8th, 2017, 08:44 PM   #5
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[QUOTE=kufman;729108]Not sure where you are getting your data,

By tracingthe frames, straight edge, 5mm awl and micrometer. so i could be off .05mm. My point was pitch, they're 2-3mm different than most boots, the mounting surfaces are not level,
Standard boot pitch to EO 3x frames. Could this cause problems for the frame or boot it they are not level and tightened down?
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Old December 8th, 2017, 09:29 PM   #6
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It doesn't sound like you are measuring from the center of the axles to the top of the deck. Your numbers sound really tall.
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Old December 9th, 2017, 04:38 AM   #7
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The pitch of an EO frame is 11mm.
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Old December 11th, 2017, 12:33 PM   #8
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Quote:
Originally Posted by MachV View Post
The pitch of an EO frame is 11mm.

Ive measured several times, it's more like 9-10 mm, no kidding. I wonder if it really matters lol.
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Old December 11th, 2017, 05:47 PM   #9
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Quote:
Originally Posted by reely? View Post
Ive measured several times, it's more like 9-10 mm, no kidding. I wonder if it really matters lol.
I have 1mm shims to raise the pitch to 12mm lol.
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Old December 11th, 2017, 09:47 PM   #10
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Quote:
Originally Posted by reely? View Post
Ive measured several times, it's more like 9-10 mm, no kidding. I wonder if it really matters lol.
After A2A, someone asked Eddie Matzger about why he had his frame mounted BACKWARDS! Sure enough, he had the 3x125 frame on backwards (on one skate only, I believe). This was apparently done because the middle wheel was touching the boot when the frame was mounted "correctly." I still don't get how this works with the negative pitch, yet he had just won the 87 mile roadskate, through the remnants of hurricane Nate nonetheless, with such a set-up.
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Old December 12th, 2017, 06:05 PM   #11
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Quote:
Originally Posted by gopherfan View Post
After A2A, someone asked Eddie Matzger about why he had his frame mounted BACKWARDS! Sure enough, he had the 3x125 frame on backwards (on one skate only, I believe). This was apparently done because the middle wheel was touching the boot when the frame was mounted "correctly." I still don't get how this works with the negative pitch, yet he had just won the 87 mile roadskate, through the remnants of hurricane Nate nonetheless, with such a set-up.
Eddie could win the A2A on one foot, skating backwards.
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Old December 13th, 2017, 12:22 PM   #12
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Quote:
Originally Posted by reely? View Post
I'm having a new boot made, to confirm measurments for the shoe make I found the pitch of the EO is only 9mm compared to the standard 12mm of most of the metal frames on the market. This can put undue stress on the boot/frame if you do not use the shims. Another observation is that the rear deck height of the 12.8" is 64mm compared to the 13" M2s 60mm, -9mm for the front deck on both frames. I'm still an EO fan and do like the lower pitch, but wonder why they lowered the deck? It forces you to use the shims even if you have higher arches.

Just sharing.


Thanks d
Talk to Desmond and see if he'll let you try the Trurev 125 frame. It's reely(haha) good.
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Old December 14th, 2017, 12:35 PM   #13
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Quote:
Originally Posted by spdkls View Post
Talk to Desmond and see if he'll let you try the Trurev 125 frame. It's reely(haha) good.
Reely? I'll give him a ring. I like the 12.8 length, Trurev are 12.6.

I'm not complaining, EO have been great to me.

Thank you Jesie!
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