another 29er / 700c disc wheel question

jomoj

Ideally I would choose the cx75, just a bit pricy over xt to lose 8 spokes and open the door to 11spd, should that trickle down to the mid range groups

majormantra

I feel you.

jomoj

Thanks, it's nice to be felt. I think.

How Far is too Far

How Far is too Far wrote:

thecycleclinic wrote:

Be ware that most MTB rims are limited to 4 bar or something like that, this is the biggest drawback.

surely a 25mm tyre with 100psi will have less effect on a rim than a 2.4" tyre with 50 Psi?

Just been doing some research on Mavic and Fulcrum 29er rims and both are fine to run higher pressures if you look at the tech. charts


http://www.mavic.com/sites/default/file ... rt_eng.pdf

http://www.fulcrumwheels.com/system/doc ... 1312279834

cycleclinic

Novatec D711/D712 hubs take an F482 10/11 speed freehub body so can be converted to 11 speed (I have done this and have two rear 11 speed hubs sitting in a box).

The CX-75 hub has these specs
http://productinfo.shimano.com/specifications.html so thats 20mm/35mm flange spacing pretty good for 11 speed.

I have not measure the nipple bed thickness but it does not look too thin and Ryde do state a max tension of 120kgf so it must be thick enough for that.

ben16v

im using mavic crossone 29er with 28mm gators no problem on my CDF

andyrr

Wonder if I can throw a CX/29er query in here ?

Looking to replace the original cheap Formula-hubbed wheels on my CX (road us only) bike, spotted these :
http://www.bike-discount.de/en/buy/xt-d ... wg_id-8821

Look ok ? Mavic rims so ok for road pressures, XT hubs so should be nice enough. Only q I have is whether the rim width might make it a bit of a squeeze ? I'm running 28mm tyres at present.

ugo.santalucia

andyrr wrote:

Wonder if I can throw a CX/29er query in here ?

Looking to replace the original cheap Formula-hubbed wheels on my CX (road us only) bike, spotted these :
http://www.bike-discount.de/en/buy/xt-d ... wg_id-8821

Look ok ? Mavic rims so ok for road pressures, XT hubs so should be nice enough. Only q I have is whether the rim width might make it a bit of a squeeze ? I'm running 28mm tyres at present.

Hard to say...
BTW: these are the older heavier XT hubs... nothing wrong with them, they are kind of heavy duty and require greasing etc... the set is likely to weigh well over 2 Kg

tincaman

andyrr wrote:

Wonder if I can throw a CX/29er query in here ?

Looking to replace the original cheap Formula-hubbed wheels on my CX (road us only) bike, spotted these :
http://www.bike-discount.de/en/buy/xt-d ... wg_id-8821

Look ok ? Mavic rims so ok for road pressures, XT hubs so should be nice enough. Only q I have is whether the rim width might make it a bit of a squeeze ? I'm running 28mm tyres at present.

If you are replacing your wheel set with those you will probably end up with wheels that are slightly heavier than you currently have

andyrr

Hmm, I've not weighed the existing wheels but I don't think they are lightweight by any means and I'd really prefer to be heading down with regards to weight not up !
Looking at 29ers as this is where there is way more choice for disc braking wheels, some of the cheap Mavics don't get great reps (Crossone for example) - not expecting anything fancy just a wheelset that will last a decent length of time without the bearings feeling like they are made of cube-shaped stone and are either easy to adjust or cheap and easy to fit replacements for. A decent seal is also a requirement. Other than that I'm not overly fussy. I'm guessing that the front QR of mine means that some of these are not compatible although some sets provide adaptors for the QRs.

ugo.santalucia

If you can stretch your budget a tad, the newer lighter XT can be built on Velocity A 23 full black for very reasonable money... pretty sure less than 250 and they'll be a pound lighter than those

drlodge

How Far is too Far wrote:

Thanks Ugo.

What would you recommend for a hand built?

I am 80kg but not heavy on wheels.
The bike is a CX bike but is used on the road 90% as a winter/wet day bike
I would like to use 28mm to 32 mm tyres, but at the moment I have Duran Pluse 25mm on it
Prefer black hub/spoke/rims
Weigh around 1600grms

Budget around the £250ish

Thanks Richard...

Ugo just built me:
Shimano XT Disc brake hubs (black)
Alpina db spokes (s/s silver)
Archetype rims (black)

Total cost £251. Front wheel weighs 860g, rear is 1035g (1895g total bare, no rotors, skewers, cassette). Fitted Vittoria Randonneur Pro 32c.

jomoj

OP here, I'd forgotten about this post.
For what it's worth I abandoned the idea of trying a 29er wheel and managed to pick up a pair of barely used JRA hand built wheels on eBay. Black archetype rims, d-light spokes and hope pro 2 hubs for £250. Very nice indeed.

Judging by the number of disc equipped road and CX bikes coming out, sooner or later we'll see some more of the shelf options I'm sure but it's a limited choice at the moment for certain

ugo.santalucia

Velocity is coming out with Aileron a dedicated 25 mm rim that fits road as well as CX tyres... tubeless or tubed... it looks phenomenal but I suspect it'll be available in autumn at the earliest.

andyrr

Sorry to avoid going down the high quality wheelset route but I don't have £200 to splash on them at present - having seen Superstar getting a good rep I've looked there and asked them about their 29er wheelsets (they have no CX wheelsets anywhere near my pricepoint at present)
These were ones I asked about and got a positive response although they did raise a query regards the tyre fitments :
Superstar XCX 29" Wheelset
http://superstar.tibolts.co.uk/product_ ... cts_id=632

There are a number around £130 or so, Mavic Crossone, seen Charge Saucer on ebay, but the SS wheels seem to get positive feedback in general.

What I might do as an alternative is see if the existing wheels can be fixed - all hub cones front and rear plus the freewheel is, I think, making some nasty noises so that also could be on the way out and I don't have the time or ability to replace these and I am not totally sure if the parts for the Formula hubs are carried by my LBSs.
Unfortunately my go-to LBS, one that would do the work for a pretty low price if parts were available, shut about 2 weeks ago.

jomoj

You could get some of these for a few quid over 100
http://www.bike24.com/p256951.html
A bit weighty but probably OK.

ugo.santalucia

andyrr wrote:

These were ones I asked about and got a positive response although they did raise a query regards the tyre fitments :
Superstar XCX 29" Wheelset
http://superstar.tibolts.co.uk/product_ ... cts_id=632

There are a number around £130 or so, Mavic Crossone, seen Charge Saucer on ebay, but the SS wheels seem to get positive feedback in general.

But they are 29er... hence very wide rims, possibly tubeless ready, that won't take your road tyres, most likely.
The 29er market is going tubeless pretty rapidly and a 19-21 mm wide tubeless rim won't take a road tyre... fact!

andyrr

Well, after trying to work out what wheels suited me and my circumstances I ended up going for the cheapest 1/2 decent set I could find. These are based on Deore hubs and a 29er rim and I sourced these for pretty much bang on £100.
My LBS had told me that it was not worth/feasible to source new cup and cones for the formula hubs so I asked them about replacements - £130 for a Deore based wheelset. Not bad I thought but after searching around I found the exact same wheelset was available at a decent saving so, much as I like the idea of buying from the shop, I felt that all they were doing was adding an extra £30 markup with little benefit to me so I bought on-line. One of the German stores seemed to have pretty much the same wheels and they were close on £20 (inc. postage) less but I decided not to as that store seemed to not get a great rep for their customer service and delivery times were a bit variable it seemed.
Wheels arrived in about 4 days or so, I didn't bother weighing them - think they quoted around 1100 / 1300g front/rear - but I can't see them being many grams different from the existing ones as they were basic Formula hubs with Alex rims and the 29er rims don't have brake tracks.

Front swap was dead easy - fortunately I had the required torx or star-drive bit for the rotor bolts - and the tyre, a Conti 4-seasons 28mm went on real easy. Pumped up to 100psi and it didn't explode or break the rim.
Rode that to work yesterday and seems fine, can't detect a difference in speed and it's nice having smooth bearings instead of the rough things I'd put up with.
Rear swap done last night, bit of a faff with a spacer for the cassette but all went simply and the tyre, a Rubino, again 28mm, also installed dead easy - I'm using Schwalbe plastic rim tape (22mm ?) which seems ok.

So, from my experience so far, these 29er rims suit 28mm road tyres perfectly and the cheap Shimano hub-based sets that are now easily sourced, are both suitable and also likely better, replacements for the disc-wheelsets that these
commuter-market CX bikes are fitted with.

I'd love to have got a set of Open Pro rims on Hope hubs built up but I don't feel I can justify that sort of cash when the complete bike itself is only worth just over £500 and is purely a ride to and from work steed.
If I regularly trained on it then I would be bumping up the monetary input but then I'd also probably install 10 or 11-speed transmission and it would be taking more money than it deserves.

Maybe in 6 or 9 months time I'll be moaning that the hubs are getting rough but as the originals lasted all-weather commuting from February last year and they were cheap and cheerful I don't see that being likely and I anticipate getting what I currently foresee as a decent period of use out of them.