New & Interesting Bike Campenaerts

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2390

Any clue what the Q factor might work out to with those cranks?

2391

Are there no 110x5 2x12-speed chainrings? Is that BCD just ded?

2392

Yes

I wrote to wickwerks asking them to make some though. He said he’s working on it

1 Like
2393

Why not just use 9, 10, or 11 speed chainrings? Afaik, 12 speed chains are the standard 11/128" width, so if your chainrings can pull that size of chain they should be able to do it with a 12-speed one.

(I use Biopace rings on all of my di2 machines, and wasn’t Biopace originally a 7-speed thing? In any case, I don’t have any trouble pulling an 11-speed chain with it.)

5 Likes
2394

11s campy ring spacing is actually narrower than campy 12s by like a mm or two.

2395

If that’s the case then that makes upgrading easy and I can keep my nerd cranks. I had some unpleasant grinding sensations with a Shimano 12-speed chain on an 11-speed sram narrow-wide 1x ring on my mountain bike, but maybe that’s only a concern with 1x stuff.

1 Like
2396

iirc shimano’s 12s chain is special stuff

https://bike.shimano.com/en-US/information/news/shimano-hyperglide-.html

for hyperglide+ the inner plates look like they’re longer to increase contact with the chainring/cassette teeth. also probably means it will make too much contact with non HG+ kit

1 Like
2397

From the looks of that page the primary change is the edges of the inner plates are more sculpted so that they won’t hang up during shifts? It might make them snuggle a little closer on old chainrings, but I can’t see how that’s too much contact?

2398

This is really the only place it matters, match the chainring to the chain and match the chain to the cassette.

1 Like
2399

That’s my secret for cheap 11s chainrings. I just buy 9-10s stuff.

3 Likes
2400

So, is electrival the way everyone gets into roboshift the same way the $300 10sp rival groups were back in tha day?

2401

i sure fucking hope so

2402

At the same time I kind of am excited to see what shitshow happens like srma shiftergate

1 Like
2403

Sram AXS 2x uses a chain with oversized rollers. So you’ll need special rings.

Rotor is offering them in round and oval for their 4 bolt Aldhu cranks. Only 48/35 so far though.

1 Like
2404

There aren’t many options for large roller cranks. I did a ton of searching here. You can however use an eagle 12 chain with a regular chainring just fine.

1 Like
2405

Right, I forgot about that!

2406

can you use these cranks with an 11s chain?

2407

From what I read you can use a chain with smaller rollers just fine.

2408

I think that might only be for mullet builds.

2409

Wait, so no eagle chain?

1 Like