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QR to Thru Axel

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QR to Thru Axel

Old 07-17-20, 11:14 AM
  #1  
Laseranimal
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QR to Thru Axel

Is it possible to convert a Shimano HB-RS505 from QR to Thru Axle? Thinking about getting a new frame and most disk brake frames seem to have gone to thru axle. Was hoping to keep my existing wheelset.
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Old 07-17-20, 12:01 PM
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fietsbob
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NO.. You would be better off having TA Hubs to put in a TA frame .. #1 .. 10 is bigger than 9, 12 >than> 10..
TA hubs are Cartridge bearings QR loose ball cup & cone
https://bike.shimano.com/en-US/produ.../HB-RS505.html

QR hubs in a regular dropout.. keep the bike you used the wheels in .. (or have the wheel rims rebuilt around new TA Hubs)



https://bikerumor.com/2018/03/16/aas...hru-axle-fork/





....

Last edited by fietsbob; 07-17-20 at 12:16 PM.
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Old 07-17-20, 12:15 PM
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wgscott
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Some hubs are completely convertible; just the end-caps differ. I think the OP question is whether Shimano HB-RS505 is such a hub. (There is no indication that this is possible on Shimano's website).
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Old 07-17-20, 12:20 PM
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fietsbob
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... as I found, looking it up, IMHO , it is not.
axle has to go through* and screw into one end of the frame
Hence Through Axle nomenclature..








///

Last edited by fietsbob; 07-17-20 at 12:27 PM.
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Old 07-17-20, 01:52 PM
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that's what I thought, thanks all!
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Old 07-17-20, 05:55 PM
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Since the thru axle screws into the frame, has anyone ever had an issue with the frame becoming stripped over time? Aluminum threads tend to be quite soft.
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Old 07-17-20, 06:20 PM
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Originally Posted by RowdyTI View Post
Since the thru axle screws into the frame, has anyone ever had an issue with the frame becoming stripped over time? Aluminum threads tend to be quite soft.
My experience as a mechanic is that this isn't a common problem. The axle is pretty large and the threads pretty course, and it's not under a ton of torque. They can get messed up if cross threaded, although again that's not very common.
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Old 07-18-20, 06:34 AM
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Originally Posted by cpach View Post
My experience as a mechanic is that this isn't a common problem. The axle is pretty large and the threads pretty course, and it's not under a ton of torque. They can get messed up if cross threaded, although again that's not very common.
I never had problems with threaded thru axles as a shop mechanic.
Focus came up with a non threaded design that uses a quarter turn lock tab that fits in a replaceable slot. The shop I was working for was a Focus dealer, and I never saw any problems with those either.
https://www.focus-bikes.com/fr_en/rat
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Old 07-18-20, 07:39 AM
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TA interface is quite large thread... TA axle is aluminum too.. a bit of grease on the thread might be good ..
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Old 07-18-20, 01:24 PM
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Here is an example of thru axle loosening: Thru axle loosening?

So while the interface might seem fine and well, over time it could deteriorate to cause loosening when riding?

Which is better for preserving over time the thru axle to frame connection, grease or anti-seize?

I like the Focus innovation.

I'm also using a Wera Hex Plus like this one: https://www.primetools.co.uk/product...rewdriver-5mm/

This has no lever to apply leverage, so I just screw until tight, and I think that's perfect. I'm not noticing any loosening. People could get into trouble if using levered tools.
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Old 07-21-20, 10:41 PM
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Just a dab of anti-seize works well for me, and that's probably why I get sufficient torque using the unlevered tool as tight as I can go. Probably hard to go wrong in any case, but I like taking care of my things as well as I can. The bolt unscrews easily yet doesn't loosen after long, aggressive riding.
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Old 07-22-20, 01:45 AM
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Originally Posted by Dan Burkhart View Post
I never had problems with threaded thru axles as a shop mechanic.
Focus came up with a non threaded design that uses a quarter turn lock tab that fits in a replaceable slot. The shop I was working for was a Focus dealer, and I never saw any problems with those either.
https://www.focus-bikes.com/fr_en/rat
Sr Suntour has the Q-Loc system which is also threadless. I love how that works. Way faster than threaded systems to remove and reattach the wheel.
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