Shimano 105 hub width?

[RufusA]

Having given up on my cr@ppy spokes-breaking Alexrim I needed to find a replacement at short notice at the weekend. My LBS had nothing suitable in stock, so I had to visit my local poncy LBS (which resides above a shop selling stuff for skiing and mountain climbing).

Anyway 100 notes later, I return home with an M:Wheel made Shimano 105 hub attached to an Open Pro rim. All well and good and a plesant hour was spent cursing whilst I swapped the rear casette and tyre, prior to fitting.

My old wheel was 130mm wide, this one looks like it's a little wider - perhaps 135mm and doesn't simply pop on - AAAGGGHH!

I don't really get it, because I was 99% sure 105 hubs only came designed for 130mm widths!

I would go back to the poncy LBS and ask, but I'm not convinced they'd be very useful / helpful, as their mechanic doesn't work weekends / evenings. I also don't feel right asking my usual LBS to sort out the mess I'm in, seeing as I didn't buy it from them.

Looking at the wheel, on the non-drive side there is what appears could be a 5mm spacer, between a locking nut and the hub. Should I simply be able to remove this (assuming I can buy a spanner thin enough to remove the nut). Or will it all end in a pile of oily bearings on the gritty floor and me in tears?

At the moment I've managed to flex the rear stays a little and get the wheel on, but this probably isn't a good solution for commuting puncture repairs!

Thanks (in advance) for any advice - Rufus.

 

[RufusA]

Possibly scrub that!

Looks like the 105 "spacer" is supposed to be there:

http://techdocs.shimano.com/media/t...FH/EV-FH-5600-2458B_v1_m56577569830646668.pdf

Shown as the second ring in from the left labeled as part of (12) and in another doc described as a:
"Left Hand Axle Spacer 4.8mm"

So perhaps this 105 is the right width, described in the doc as 130mm. Just a bit tighter on the frame than my old wheel and I'm unduly panicing!

Rufus.

 

[Adrian_K]

not a great deal of help on dimensions but this should stop you chasing ball bearings around the floor
http://techdocs.shimano.com/media/t.../FH/EV-FH-5501-2170_v1_m56577569830608912.pdf

looks like there are two 105's: 9 & 8/9/10spd !!?? but width I think are the same.

http://techdocs.shimano.com/techdoc...<>ast_id=1408474395181679&bmUID=1245679141832

 

[Landslide]

Hmm, on reading your thread heading, I thought "130mm. End of."
Having read your post, I thought "Hmm, Alex rims, probably a relatively new bike, should be at least 130mm spacing."
Having read your last post, I wonder if there's a slight question of tolerance between your hub and your dropouts. Have you measured them both?
If the variance is only small, then don't worry about it. I've got a "130mm" hub sat in a "130mm" frame and the wheel doesn't just "pop on", but I'm appy it's the right hub for the frame and vice versa.

How much are you flexing the stays apart? What's te frame? Any chance it's an older one with 126mm spacing?

 

[dellzeqq]

I'm surprised that you've had trouble with an Alexrim. They may not be the most aristocratic of rims, but they're surprisingly robust.

 

[Landslide]

'twas the spokes breaking not the rim. IME Alex rims are often built up to satisfy a price point, and as such are often built up with cheaper rustless spokes.

 

[RufusA]

Thanks everyone!

Rear hubs are suprisingly difficult to measure with any degree of accuracy, particularly when someone has laced them with spokes and installed an oily cassette!

Looking at it in the cold light of day (after my initial oh sh!t how am I going to get to work now). It looks like a minor tollerance issue. The drop outs and old hub seem a squeak under 130mm and the new hub a squeak over 130mm. So a little flex and push and the wheel pops on and off fine. Just me being over panicy!

The Alexrims on the whole have been fine. Except mine are the bottom of the pile; cheap R500 rims, with even cheaper Taiwanese spokes that had been tightened to b*ggery. One poped spoke, and the wheel goes brake wedgingly out of true! A tenner to the LBS, two days without the bike, and the all the spokes given extra tightening to make the wheel true again. Repeat 5 times, and it's time to put the wheel out of its misery.

Rufus.