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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 August 22nd, 2019, 05:03 PM   #1
ppietranico
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Default Skating slower on 125mm

Hi, I'm not new, but I haven't been around in several years...but I have a problem on which I could use some advice. I've been inline speedskating for 16 years.

I finally switched to 125mm from 110mm in May this year. I've been tracking my speed and I skate about 5-10% slower on 125mm. I have custom Marchese boots (12 years old now), a 13" EO 125mm carbon frame and black magic wheels. On 110mm, I have a Liberty Sports aluminum frame and black magic wheels.

Here are two key things about me:

(1) I pronate, and I find that I have to move the frame all the way to the inside to feel remotely balanced

(2) I am a big solid guy, 6' and 225-230 lbs.

I skated in Central Park (NYC) doing 1 lap averaging 15.0-15.2 mph on 110s and 13.9-14.2 mph on 125s.

I feel like I get much better "roll" on 125s, especially up hill, but I think I lack stability and am not fully transferring my weight enough between pushes, so am not pushing as hard.

Also I was skating with a guy in the park, who has the same 125mm frame, but is a much lighter guy, maybe 170 lbs, and he had better roll when we were gliding side by side.

I'm not sure what to do. Given my weight, could it be excess flex in the EO frame? Excess flex in 125mm plastic hub wheels? Both? Or just the extra 15-20mm height combined with my pronation? Or just crappy technique and I should be more patient?

I was thinking I might try the Bont aluminum hub wheels first, before buying a different frame...

Any advice?
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Old August 22nd, 2019, 05:48 PM   #2
bjvircks
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How hard are your 125mm wheels and are they high quality (banded)? When you went from 4 wheels/skate to 3 wheels/skate each wheel must support 33% more weight which can dramatically affect wheel deformation at the patch where wheel contacts road. I'm also your size/weight and I must use xxf.

Also... big wheels are harder to spin up so (my opinion) they like long strides with slow even pushes. Ride one skate a bit longer and give your recovering leg a few extra moments to rest as you bring it back under you. You've got a skate/foot/frame/balance problem if you cannot choose/control how long you ride one skate.
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Old August 22nd, 2019, 06:20 PM   #3
ppietranico
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Quote:
Originally Posted by bjvircks View Post
How hard are your 125mm wheels and are they high quality (banded)? When you went from 4 wheels/skate to 3 wheels/skate each wheel must support 33% more weight which can dramatically affect wheel deformation at the patch where wheel contacts road. I'm also your size/weight and I must use xxf.

Also... big wheels are harder to spin up so (my opinion) they like long strides with slow even pushes. Ride one skate a bit longer and give your recovering leg a few extra moments to rest as you bring it back under you. You've got a skate/foot/frame/balance problem if you cannot choose/control how long you ride one skate.
Thanks. I am using XXF MPC Black Magic 125s. I will try to pay attention to the length of my strides

But I've always bought the hardest outdoor wheels for that very reason. Could be that Black Magic XXF on 125mm just isnt' hard enough, and maybe the hub too... which brand of wheels do you use?

Last edited by ppietranico; August 22nd, 2019 at 09:28 PM. Reason: added some additional comments
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Old August 22nd, 2019, 08:00 PM   #4
BMW325TI
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I don't know if you are using double push technique, but it will give you more speed.
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Old August 22nd, 2019, 08:43 PM   #5
ppietranico
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Originally Posted by BMW325TI View Post
I don't know if you are using double push technique, but it will give you more speed.

Yes I double-push, I have for 15 years.
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Old August 23rd, 2019, 06:58 AM   #6
BMW325TI
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Maybe you should try other brand wheels.

I am using (with aggressive boots) Matter one five F0 compare to Undercover Python 125, Matter infinity and image.

Matter one 125 rolls much faster and more control...

Also try to adjust frame forward or backward and find out which adjustment gives you more power to wheels.
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