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oneup aluminum pedals and sram carbon cranks...

16369 Views 24 Replies 14 Participants Last post by GMUGNIER, Jul 23, 2021

bikessuck

Discussion Starter · Jul 17, 2021

So, I impulse bought some oneup aluminum pedals and promptly mounted them onto my old sram carbon cranks. They were immediately stiff, which I thought was maybe just a break in period, but a few hours into the ride they started making some awful squeaking noises. Went back to the shop who let me know that those pedals don't work with sram carbon cranks, wouldn't take them back, and gave me some washers which makes things slightly better but still pretty sketchy.

So; does anyone have a way to make the those crank and pedals play nice together?

1 - 20 of 25 Posts

mlx john

· #2 · Jul 17, 2021

It's a bummer man. Bikeshop is right.
They sold you the pedals, but won't take them back?

From the oneup website about their pedals:

COMPATIBILITY

Currently, due to the deep counterbore of the crank arms, these pedals are not compatible with SRAM Carbon cranks.

mlx john

· #3 · Jul 17, 2021

mlx john said:
It's a bummer man. Bikeshop is right.
They sold you the pedals, but won't take them back?

From the oneup website about their pedals:

COMPATIBILITY

Currently, due to the deep counterbore of the crank arms, these pedals are not compatible with SRAM Carbon cranks.

Crockpot2001

· #4 · Jul 17, 2021

This is the first I've heard of this. Wife on that combo for a year now.

MTBGV

· #5 · Jul 17, 2021

Crockpot2001 said:
This is the first I've heard of this. Wife on that combo for a year now.

Same here. I like the OneUps because they have a wide platform for my big feet and are thinner so I experience a few less pedal strikes. Now I need to find a pedal with similar dimensions so I don't ruin my Descendants cranks.

Crockpot2001

· #6 · Jul 17, 2021

MTBGV said:
Same here. I like the OneUps because they have a wide platform for my big feet and are thinner so I experience a few less pedal strikes. Now I need to find a pedal with similar dimensions so I don't ruin my Descendants cranks.

I have to correct myself. She's been on that combo for just 4-5 months. Still, no issues. I'm picking up a set of Diety Kats later today to put on her bike.

CrazyIvan

· #7 · Jul 17, 2021

You should be able to get some pedal washers to shim them out. It's been an issue with sram carbon cranks for years.

Crockpot2001

· #8 · Jul 17, 2021

CrazyIvan said:
You should be able to get some pedal washers to shim them out. It's been an issue with sram carbon cranks for years.

Amazon.com

Already have two washers on both pedals. Now I know why that was needed. I'm not comfortable going against MFR recommendations when it comes to my wife's health.

Reactions: 1

Mike Aswell

· #9 · Jul 17, 2021

I had a catastrophic failure first ride with those pedals and a RaceFace carbon crank. Very nearly ruined the crank though I was able to chase the insert and clean it up enough that it's been fine with other pedals since.
I threw the OneUps away. As much as I love their other stuff I'd never buy their pedals again.

FrankS29

· #10 · Jul 17, 2021

Mike Aswell said:
I had a catastrophic failure first ride with those pedals and a RaceFace carbon crank. Very nearly ruined the crank though I was able to chase the insert and clean it up enough that it's been fine with other pedals since.
I threw the OneUps away. As much as I love their other stuff I'd never buy their pedals again.

What happened with the pedals?

I've been running 3 sets of Oneup pedals for over 2 years without issue.

What did Oneup say about the failure?

genny1

· #11 · Jul 17, 2021

Was going to switch over OneUp aluminum pedals to SRAM carbon cranks. I don't see the same product advisory on OneUp's webpage for their composite pedals. Anyone know if the issue is only with the aluminum?

Mike Aswell

· #12 · Jul 17, 2021

FrankS29 said:
What happened with the pedals?

I've been running 3 sets of Oneup pedals for over 2 years without issue.

What did Oneup say about the failure?

Excuse the laymen's terms but one pedal basically ended up off axis or wobbling on the spindle which did a number on the the insert threads. As soon as it was perceptible I stopped riding but the crank was already damaged some. They were definitely installed correctly. At the time I was guessing fluke QC issue but I didn't know they advised against using that pedal with some carbon cranks.
TBH I didn't contact OneUp and in general I'm a fan so not complaining, it was just one of those things that happens.

Reactions: 1

crj5

· #13 · Jul 17, 2021

My fiancé is running OneUp alloy pedals on her X1 carbon dub cranks (the ones that came OEM on her Transition Spur). I had some issues getting them on at first, but using extra pedal washers and removing some material off the edges of the crank boot holes made the crank/pedal combo work just fine. There is plenty of thread engagement, the oversize outboard bearing isn’t rubbing on anything, and the pedals rotate freely. I’ve removed and installed the pedals a few times and see no signs of damage to the cranks or pedals; I see no issues with doing it this way…

Crockpot2001

· #14 · Jul 17, 2021

genny1 said:
Was going to switch over OneUp aluminum pedals to SRAM carbon cranks. I don't see the same product advisory on OneUp's webpage for their composite pedals. Anyone know if the issue is only with the aluminum?

Probably specific to the aluminum peds as they have a massive inboard bearing vs. the smaller ones on the composites.

Reactions: 1

mschoobs

· #15 · Jul 17, 2021

I had 1up aluminum pedals seize up on sram carbon cranks. They ended up stopping the threads and I have to replace the cranks. I switched to Canfield crampons and everything has been great. I use the aluminum pedals with gx aluminum cranks on another bike with no issue.

I would not run one-up aluminum pedals on Sram carbon cranks ever again.

FrankS29

· #16 · Jul 17, 2021

Sounds like another reason to just run Shimano!

Karmatp

· #17 · Jul 18, 2021

FrankS29 said:
Sounds like another reason to just run Shimano!

or just use composite one up pedals.

FrankS29

· #18 · Jul 18, 2021

Karmatp said:
or just use composite one up pedals.

But composite isn't aluminum…

Reactions: 1

Ratt

· #19 · Jul 18, 2021

I'd say go ahead with a one more shim. Running alloy Wah Wah II on XO1 cranks. These pedals also have that large inboard bearing would rub the crank boot. Or it could have been rubbing the crank too. I didn't want to run without the boot so I added a shim. About a year on an enduro bike, have cracked 2 rear wheels (no cushcore at the time) but the crank and pedals are still fine.

I had a new set of plastic one ups missing a bearing cap. I didn't notice till I went to replace some broken pins. Returned it to the shop and they sent it back still missing the cap. Called one up and they would not send me a cap. I ended up having to buy a whole parts kits for one part. I love their stuff but their QA and CS suck ballz.

FrankS29 said:
But composite isn't aluminum…

ok that made me laugh

Reactions: 1

mschoobs

· #20 · Jul 18, 2021

I was running two washers on the pedals and they still seized up. There is an issue with these pedals and how the force interacts with the bearing from what I can tell.

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