Paceline Machinists?

[Look585]

Anyone here with a lathe or mill?

I’m looking for someone to modify several Ultegra 8000 cassettes for use on older 10s wheels.

I send you the large 3-cog carrier end of a pile of new 11-32 / 11-30 / 11-28 cassettes, pay you well for your time, and you send back those with a 1.85mm deep by 42mm diameter recess machined in the back...

Anyone able to help out?

[homagesilkhope]

Veteran cyclist JP Morgen would likely take care of that for you. He's closed his SF machine shop and moved in the last year or so to Penngrove. Think he's still working some at home. Great guy.

[aaronf]

pm sent

[bicycletricycle]

I have lathe and have done this before, can do it again.

[charliedid]

I love this

[mtechnica]

I wish I could help you but our machine shop is already slammed and I keep bringing them things to make same day for one of our integration projects that’s late. If it was earlier this year I could have made a program for the CNC and busted out however many. Hopefully someone else can help.

[onsight512]

Could you post a photo of the part you're looking to have machined?
I've a lathe also and am happy to help. I'm also just curious to understand what you're trying to accomplish.

[merckxman]

Wasn't some one offering this as a service offering? Don't remember name.

[Gsinill]

Could you post a photo of the part you're looking to have machined?
I've a lathe also and am happy to help. I'm also just curious to understand what you're trying to accomplish.

Same here, checked a Shimano 11 cassette but not sure I get what you are trying to do. Curious.

[weisan]

https://www.youtube.com/watch?v=cazQt5oleo4

[Jaybee]

Same here, checked a Shimano 11 cassette but not sure I get what you are trying to do. Curious.

Fit an 11spd cassette on a 10spd freehub?

[onsight512]

https://www.youtube.com/watch?v=cazQt5oleo4


Thanks Weisan. Now I understand. The carrier just needs to be faced.

[vqdriver]

I thought people trimmed the shoulders on their freehub bodies to accomplish this.

[Black Dog]

I thought people trimmed the shoulders on their freehub bodies to accomplish this.

This is the best solution if the free hub body has shoulders that are wide enough to be reduced by 1.85mm. I did this on a few HED 10 speed freehub bodies and it works great. One caveat, these modifications move the cassette towards the spokes and on some hubs this will lead to the RD cage contacting the spokes in the largest sprocket.

[oldpotatoe]

This is the best solution if the free hub body has shoulders that are wide enough to be reduced by 1.85mm. I did this on a few HED 10 speed freehub bodies and it works great. One caveat, these modifications move the cassette towards the spokes and on some hubs this will lead to the RD cage contacting the spokes in the largest sprocket.

Glad somebody said it..upper limit screw exactness is key but even then, under lotsa stress, the rear der can still tickle the spokes or worse(see Cervelo thread)...

[unterhausen]

so most 11 speed hubs move the DS flange in 2mm?

[ChainNoise]

I can do this no problem if you don't have someone else lined up.

[P K]

I've done this to a lot of Ultegra cassettes (Ultegra 11's have an aluminum carrier, unlike the steel sprockets of 105, can't remember what DA has) so.......if everyone else that has offered to do it suddenly can't, let me know

[oldpotatoe]

so most 11 speed hubs move the DS flange in 2mm?

For shimano compatible hubs, when compared to a 10s hub, yes..some not as much as 2mm but gotta put the higher stack 11s stuff somewhere. What's also a 'shame', as the trend is now to 12s..ANOTHER freehub design from the 2 'S' brands also...for 12s..

[Look585]

Closing the loop:

Thanks to all who offered services. I ended up sending a bundle of 3-cog-carriers to AaronF for the modification. He has a custom setup where he modified an expanding collet to fit the diameter of a shimano cassette spline and then mills a two-step cut to the proper depth (1.85mm?) on a lathe.

I mounted the resulting cassettes (as small as 11-25) to 10-speed DA7700 and Mavic MR601 rear hubs and had no problem with spoke or rear derailleur clearance. The 11-25 was admittedly tight between spokes and inner derailleur cage plate in the 25, but all worked peachy. I do not even need to futz with r.derailleur adjustments when swapping back to "regular" 11-wheels.

Aaron's price was super reasonable and his turnaround was quick. Highly recommended!

[farmerjosh]

Reviving this thread to see if there is anyone out there still offering to do this. I have a couple of cassettes I'd like to get modified for my 7700 DA hubs that won't die. Please PM me with what it would cost to get 2 cassettes (5800 level I think) milled to fit a 10 speed freehub.

Thanks all.

[jc031699]

Psa machining 11s cassettes to fit 10s hub
https://r.tapatalk.com/shareLink/topic?share_fid=60324&share_tid=234612&url=https%3A%2F%2Fforums%2Ethepaceline%2Enet%2Fsho wthread%2Ephp%3Ft%3D234612&share_type=t&link_source=app


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[aaronf]

Psa machining 11s cassettes to fit 10s hub
https://r.tapatalk.com/shareLink/topic?share_fid=60324&share_tid=234612&url=https%3A%2F%2Fforums%2Ethepaceline%2Enet%2Fsho wthread%2Ephp%3Ft%3D234612&share_type=t&link_source=app


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I do the milling/machining for Kinetix here in ATL, along with providing my services to other shops and individuals as well. Feel free to PM with questions or for further info.

I also take on prototyping and one-off projects. All manual milling and lathe work; it's my evenings/weekend hobby when not riding bikes.

[schwa86]

Can you continue to use the 11s faced cassette on the 11s hub, or does this also mess with alignment on that in some fashion? Just curious.

[unterhausen]

Can you continue to use the 11s faced cassette on the 11s hub, or does this also mess with alignment on that in some fashion? Just curious.

I'm really curious why you would want to do such a thing?

[MaraudingWalrus]

I would assume now that one has been machined down to fit on a 10sp freehub that you'd have to add a spacer in to make it work on an 11sp freehub.

[jc031699]

I do the milling/machining for Kinetix here in ATL, along with providing my services to other shops and individuals as well. Feel free to PM with questions or for further info.

I also take on prototyping and one-off projects. All manual milling and lathe work; it's my evenings/weekend hobby when not riding bikes.


That’s fantastic. Thanks so much for connecting the dots for us- and it’s a wonderful service that you are providing.

PM’ing now about a potential cnc / solidworks question.


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[aaronf]

Can you continue to use the 11s faced cassette on the 11s hub, or does this also mess with alignment on that in some fashion? Just curious.

Yes, you would just need to use the 1.85mm spacer that came with many 11sp freehubs for use with a 10sp cassette as the milled 11sp cassette is 10sp wide.

[SPOKE]

I’m a little late to the party on this but I have the necessary lathe and related tooling to do this modification for folks. I’m in Raleigh NC.
Currently working on my own product design to bring to the cycling market but have enough capacity to help folks out with this modification.
Feel free to PM to connect....
Cheers...SPOKE

[schwa86]

I'm really curious why you would want to do such a thing?

Because I have one set of wheels with a 10 speed hub that are essentially decommissioned since I upgraded to 11, and one set of 11s.