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flag trioofchaos
O+
Posted: Sep 27, 2022 at 5:48 Quote
pyromaniac wrote:
trioofchaos wrote:
Hey guys! Looking for some help. Want to convert my Chromag to SS, but don't have sliding dropouts. When it comes to chain tensioners I am having trouble finding one that can be used with a 20+ tooth sprocket in the back. Any input?

Try looking for an ISCG mounted chain tensioner. IMO that's a way better solution to tension a chain, than using a derailleur style one.

photo

steel is real

And no ISCG mounts!
flag pyromaniac
Posted: Sep 27, 2022 at 6:01 Quote
trioofchaos wrote:
And no ISCG mounts!

A Chromag with no ISCG mount and a PF BB? Bummer.

Some people use the cage and clutch of a Shimano Zee rear mech and bolt it to a carbon plate...
Looks like this: Link
flag trioofchaos
O+
Posted: Sep 27, 2022 at 6:42 Quote
pyromaniac wrote:
trioofchaos wrote:
And no ISCG mounts!

A Chromag with no ISCG mount and a PF BB? Bummer.

Some people use the cage and clutch of a Shimano Zee rear mech and bolt it to a carbon plate...
Looks like this: Link

Trust me... the PF BB is not pleasant, but I willl give that a look!
flag commental
Posted: Sep 27, 2022 at 7:34 Quote
Could you make it work by using a Praxis type BB and clamp the tensioner in that way? I think it has to be a 24mm spindle for these, but just a suggestion.

https://www.merlincycles.com/praxis-bb30-bottom-bracket-conversion-93683.html?utm_source=PHG&source=PHG&utm_medium=Affiliates&utm_campaign=genieshopping
flag aer0
Posted: Sep 27, 2022 at 15:39 Quote
trioofchaos wrote:
aer0 wrote:
follwoup, is it PF or BSA? you could look to use an EBB if you can find something suitable

Pressfit!

there should be a solution to your problem here
https://www.firstcomponents.com/bottom-brackets/eccentric/
flag trioofchaos
O+
Posted: Sep 27, 2022 at 16:01 Quote
aer0 wrote:
trioofchaos wrote:
aer0 wrote:
follwoup, is it PF or BSA? you could look to use an EBB if you can find something suitable

Pressfit!

there should be a solution to your problem here
https://www.firstcomponents.com/bottom-brackets/eccentric/

Excuse my ignorance, but what exactly is that? Looks pretty cool.

Edit: Nvm figured it out. That would be a great solution. However, I have to replace my BB every two months or so because Chromag made the tolerances too tight and I run through bearings like it is my jobSmile
flag aer0
Posted: Sep 27, 2022 at 16:30 Quote
using something like an EBB with an external cup could result in better bearing life if you set it up correctly.

**could/should

 


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