|
Axle diameter problem?
Finally getting some parts to build up my old Derosa SLX circa 1990-92 or thereabouts. Had settled on some mid - late '90's Campy, but when I got to wheels I figured I would use and extra set of Industry 9 I25's that I have with Torch hubs which I love. I believe I will have the clearance with tires and such BUT when I started to play with it, it looks like the axle may be too large in diameter to fit in the drop outs. Did axle diameters increase as an industry standard? Guess I didn't realize that and will now need to buy new wheels to match. The old ones are an old Shimano 600 with 8spd freehub.
Thanks! |
The 600 Ultegra are 10mm diameter axles. Next step up is 12mm, then 15mm. Increasing the axle diameter increases its stiffness. Larger axle diameters, usually in conjunction with thru-axle technology, are common practice to stiffen the axle-fork interface on modern bicycles equipped with disc brakes, as it decreases disc rotor deflection and subsequent pad rub.
|
Originally Posted by T-Mar
(Post 21801480)
The 600 Ultegra are 10mm diameter axles. Next step up is 12mm, then 15mm. Increasing the axle diameter increases its stiffness. Larger axle diameters, usually in conjunction with thru-axle technology, are common practice to stiffen the axle-fork interface on modern bicycles equipped with disc brakes, as it decreases disc rotor deflection and subsequent pad rub.
|
Originally Posted by robbyville
(Post 21801396)
Finally getting some parts to build up my old Derosa SLX circa 1990-92 or thereabouts. Had settled on some mid - late '90's Campy, but when I got to wheels I figured I would use and extra set of Industry 9 I25's that I have with Torch hubs which I love. I believe I will have the clearance with tires and such BUT when I started to play with it, it looks like the axle may be too large in diameter to fit in the drop outs. Did axle diameters increase as an industry standard? Guess I didn't realize that and will now need to buy new wheels to match. The old ones are an old Shimano 600 with 8spd freehub.
Thanks! There are 9mm endcaps for Torch hubs if you currently have 12 or 15 up front. https://www.competitivecyclist.com/i...oCM88QAvD_BwE# I don't know if they have them for 10x130 rear, though. |
Originally Posted by LesterOfPuppets
(Post 21801565)
90s road bikes were 9mm x 100 up front, 10mm x 130 out back.
There are 9mm endcaps for Torch hubs if you currently have 12 or 15 up front. https://www.competitivecyclist.com/i...oCM88QAvD_BwE# I don't know if they have them for 10x130 rear, though. |
Originally Posted by robbyville
(Post 21801589)
Very cool thank you! I'll check around to see if they have them in 10mm. Would certainly prefer that to another set of wheels, especially since these are so nice and act as my spares for the Speedvagen.
|
This should be an easy thing measure with a pair of calipers but looking at their website is seem they might be larger. Traditionally axles are 10mm rear and 9 front.
Next question is are those wheels designed for disc brakes or rim brakes? https://www.industrynine.com/ |
Originally Posted by Bianchigirll
(Post 21801600)
This should be an easy thing measure with a pair of calipers but looking at their website is seem they might be larger. Traditionally axles are 10mm rear and 9 front.
Next question is are those wheels designed for disc brakes or rim brakes? https://www.industrynine.com/ |
|
Originally Posted by robbyville
(Post 21801637)
The wheels are rim brake variety. They act as my spare wheels for the Speedvagen but I was hoping to move them to the DeRosa. I had thought that since the DeRosa was able to handle Shimano 8spd which I believe was also 130mm that it would be able to handle the Campy driver since they did not increase the length between 8-11spds. I was hoping to simply change the Shimano freehub to a Campy one which I have received and installed. When I tried to test fit the wheel quickly, the width did not seem to be an issue but the axle diameter was.
And the rear wheel axles seem too fat to fit in the dropouts? The front wheel is fine? Are they horizontal rear dropouts or vertical? Are the axle parts that sit in the dropouts threaded or smooth? Maybe pics? |
Originally Posted by robbyville
(Post 21801637)
The wheels are rim brake variety. They act as my spare wheels for the Speedvagen but I was hoping to move them to the DeRosa. I had thought that since the DeRosa was able to handle Shimano 8spd which I believe was also 130mm that it would be able to handle the Campy driver since they did not increase the length between 8-11spds. I was hoping to simply change the Shimano freehub to a Campy one which I have received and installed. When I tried to test fit the wheel quickly, the width did not seem to be an issue but the axle diameter was.
And could you post a photo of the axles on the Industry 9 hubs? If the Speedvagen is a rim brake road bike I concur that it should be 130mm spacing from the inside of dropout to dropout. The part of the axle that protrudes past the end caps (or cones & locknuts whatever the case may be) could be ever so slightly too thick. This is why a few photos of the dropout & the axle ends would be enlightening.... I concur that checking with Industry 9 is a good idea as well. |
Originally Posted by LesterOfPuppets
(Post 21801648)
So the wheels have QR levers, not thru axles?
And the rear wheel axles seem too fat to fit in the dropouts? The front wheel is fine? Are they horizontal rear dropouts or vertical? Are the axle parts that sit in the dropouts threaded or smooth? Maybe pics?
Originally Posted by masi61
(Post 21801654)
On your Speedvagen, what type of rear dropouts does it have?
And could you post a photo of the axles on the Industry 9 hubs? If the Speedvagen is a rim brake road bike I concur that it should be 130mm spacing from the inside of dropout to dropout. The part of the axle that protrudes past the end caps (or cones & locknuts whatever the case may be) could be ever so slightly too thick. This is why a few photos of the dropout & the axle ends would be enlightening.... I concur that checking with Industry 9 is a good idea as well. https://cimg3.ibsrv.net/gimg/bikefor...90e3cbe6fb.jpg https://cimg4.ibsrv.net/gimg/bikefor...cca47d2b6f.jpg https://cimg6.ibsrv.net/gimg/bikefor...f3b6de17f2.jpg https://cimg0.ibsrv.net/gimg/bikefor...eb43f9c431.jpg https://cimg1.ibsrv.net/gimg/bikefor...19ca24a380.jpg |
That front hub should have 9mm endcaps already.
A lot of aluminum endcaps do seem slightly fatter than threaded axle ends in my experience. If it's just a tight squeeze, which I've found on some Rolfs I have, I just force em in there. Another issue I've encountered on used frames is that sometimes the dropouts get squished closed a bit with rough handling, and will be tight at the opening, but a looser fit when pulled back into the dropouts. |
That fork dropout almost looks squished in the pic. Try putting the endcap into the top of the dropout with the wheel outside the fork, does it go in?
Check the rear dropout from front to back also. I had a pinarello whose rear dropout had gotten pinched in a bit. I just put a pipe over the dropout/hanger and gently coaxed it open a bit. |
robbyville Thanks for providing photos.
It appears that the aluminum protrusion both front and rear is ever so slightly too thick making them not want to slide into neither the front, nor the rear dropouts. This is interesting. Now might be a good time to get that metric digital dial caliper and take some measurements, comparing with opening width between the parallel faces of the front and rear drops on both the Speedvagen and the DeRosa SLX (in units of, say 0.01mm or .001” take your pick). You could gain a wee bit of rear dropout clearance on the rear dropouts just by scraping the remaining paint away & down to the chrome plating that remains. For the front wheel, Just by looking, it really appears as if the “protrusion” part of the aluminum axle is too thick to clear the thick chrome plating of your DeRosa fork ends. If it were me I would consider filing the chrome off of the notch in the forkends for a minute, but then stop myself. It would be less destructive and almost as easy to disassemble the front axle and chuck the aluminum axle in a drill press or metal lathe chuck and grind a tiny bit of material using a carbide cutter or grindstone. If you you tell Industry 9 about the issue and tell them precisely how far out of tolerance the “protrusions” are for your application, they may then direct you to send them in to them and they can make the modifications on a metal lathe or perhaps send you an alternate axle set that will be plug-n-play for you. it would be a shame to not get those Industry 9’s to work great with your DeRosa. |
Thanks folks, will definitely get the calipers and check. If I can coax it in that would be awesome. I'm in no hurry so if it's just a matter of getting new caps and they offer said caps that would be my best option. These wheels are great and I've always liked the I9 hubs on my road bikes. I've used many and didn't realize that the end caps may have changed diameter but if it's close and I can work it out that would be my preference over buying another set of wheels for this bike.
|
Both dropouts look like the mouth end is slightly narrower. See if the axle ends will fit by sliding them laterally into the top of the front dropout and back of the rear dropout from the outside of the dropouts. On the rear dropout, don't forget to set the adjuster screw as far back as possible. If you can do this, the mouth ends of the dropouts are slightly pinched. The axle end for the front hub doesn't look so oversize that it's the next size up.
|
I agree with T-Mar, the dropouts are ever so slightly squished. this is not unusual. It can be fixed with a large screwdriver, just bend carefully.
Mark Petry Bainbridge Island, WA |
Originally Posted by T-Mar
(Post 21801890)
Both dropouts look like the mouth end is slightly narrower. See if the axle ends will fit by sliding them laterally into the top of the front dropout and back of the rear dropout from the outside of the dropouts. On the rear dropout, don't forget to set the adjuster screw as far back as possible. If you can do this, the mouth ends of the dropouts are slightly pinched. The axle end for the front hub doesn't look so oversize that it's the next size up.
Originally Posted by mpetry912
(Post 21802705)
I agree with T-Mar, the dropouts are ever so slightly squished. this is not unusual. It can be fixed with a large screwdriver, just bend carefully.
Mark Petry Bainbridge Island, WA https://cimg7.ibsrv.net/gimg/bikefor...290eb06c2.jpeg https://cimg8.ibsrv.net/gimg/bikefor...ebe3bde8f.jpeg |
Funny how it sometimes take a picture to help you along. I was so nervous before thinking that these wouldn’t fit. Thanks again!
https://cimg9.ibsrv.net/gimg/bikefor...a4386fd67.jpeg |
| All times are GMT -6. The time now is 02:20 AM. |
Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.