REVIEWS DEALS BIKESHOPS TRAILS

32T round to 30T oval chain length

2463 Views 8 Replies 5 Participants Last post by Rynine4, Oct 18, 2021

Rynine4

Discussion Starter · Oct 15, 2021

Just switched from a 32T round to a 30T oval and kept the chain length the same. I had read that 2 teeth doesn’t require any links removed but with a 30T oval there’s a period of 28T which is 4 teeth from my original chain length of 32 round. Do I need to actually remove a full link in this case?

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TraxFactory

· #2 · Oct 15, 2021

Shift bike into highest gear.
Rotate the cranks into the shortest chain ring position.

Observe your derailleur, is it taking up enough slack?

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Fuse6F

· #3 · Oct 15, 2021

shift to hardest gear

just fit the longest chain, where the derallieur maintains chain tension, w crank set to smallest position of the oval.

its that simple.

if not sure.

remove the quick link and relax the chain to see when the derallieur goes limp.

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Zerort

· #4 · Oct 15, 2021

Yes, remove a link.

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Rynine4

Discussion Starter · #5 · Oct 16, 2021

Zerort said:
Yes, remove a link.

I ended up sizing my chain again by following the Shimano method and wrapping around the largest gear while skipping the derailleur and counting links. Ended up being 1 link too long. Removed one link you mentioned and now chain tension is perfect.

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TraxFactory

· #6 · Oct 16, 2021

Rynine4 said:
I ended up sizing my chain again by following the Shimano method and wrapping around the largest gear while skipping the derailleur and counting links. Ended up being 1 link too long. Removed one link you mentioned and now chain tension is perfect.

Where did you clock the chainring?

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NordieBoy

· #7 · Oct 17, 2021

TraxFactory said:
Where did you clock the chainring?

Shouldn't matter?
The rear mech only moves a couple of mm?

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TraxFactory

· #8 · Oct 17, 2021

NordieBoy said:
Shouldn't matter?
The rear mech only moves a couple of mm?

I think you're right I just did the same last night

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Rynine4

Discussion Starter · #9 · Oct 18, 2021

NordieBoy said:
Shouldn't matter?
The rear mech only moves a couple of mm?

When I sized the chain using the Shimano method I moved my cranks in a few different positions just to see. It needed a link removed no matter what position my cranks/chainring was in.

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