- PSA – Shimano hubs ARE completely rebuildable
Hmmm. I will certainly have a look next time; if I let one get pitted. You’re right about cheap hub availability. I snapped a DX front hub axle recently and found a modern Deore one @ On-one for £5. Cheap axle and cone replacement sorted.
I always enjoy wielding my cone spanners. It’s an almost forgotten art in cycling.Posted 4 years ago
For anyone with a pitted NDS cup in their rear hub (naughty, naughty!) or front.
Yesterday I whacked a good one out of an old hub and then used that to replace one in a different hub (in a wheel). Couldn’t be simpler really, just like changing bearings in a Hope hub except you don’t need to support its outside only.
Many mechanics won’t have a ****ing clue about this process, although it was standard for Campag hubs (not sure about their newer ranges). All you need is a spare hub for all the parts – not even necessarily the same one, and often available cheaply (moreso than a Hope rebuild kit for instance).
So that’s that debate won then? *dusts hands*Posted 4 years ago
OK the freehub is not repairable – but it is replaceable.
Now go and find me some 09 Ultegra Cones as my LBS say no longer available in UK
They have searched for alternatives? I’d be very surprised if nothing compatible is available. Many LBS either are clueless or don’t care.Posted 4 years ago
Parts 9 and 13 – look very standard to me – plug the codes into the Madison website, I bet there’s something that will work.Posted 4 years ago
I have a couple of these
775 series hubs and they do indeed have different bearings etc then previous ones.
Most other Shimano front hubs use 9 bearings, these use 11 and I guess they’re a different size.
Anyhow – that link above will take you to the service pdf for those hubs, so take a look. I think the giveaway might be that they use a hex key to unlock the locknut, not a cone spanner.Posted 4 years agomrmonkfingerMember
As many others have, I’ve been there and done that.
Shimano hubs still weight a fair old pile. If one cares about such things.
weights, XT756s are (google says) Front:244g Rear: 435g… Hopes are Front 185g Rear 295g – and they’re far from the lightest cats on the block.
Also because the shimano freehub screws onto the main hub shell, the rear hubs never quite run true, it’s just impossible to machine threads accurately enough IIRC. So you get a wobbly cassette. If one cares about such things.
Sure, Shimano are cheap. But you can buy other hubs cheaply, too.Posted 4 years agoNorthwindSubscriber
PeterPoddy – Member
I bet you can’t buy the cups on their own……
Nah, but then you wouldn’t want to really- buy a hub, get fresh bearings, new seals, a spare freehub, even a QR if I remember rightly, for about what you’d expect to pay for a couple of little parts.
We found it pretty hard work to get one of the cones out, and I can see there might be compatablity issues over years (if the interference sizes changed) but yeah, it’s a pretty straightforward job- barely harder than changing cartridge bearings.Posted 4 years agoToastyMember
Done exactly the same. Had 2 broken hubs (1 with knackered freehub, 1 with knackered cones), made 1 working hub.
I’d still have cartridge hubs in a heartbeat. As far as I’m concerned they should ditch the design entirely and we can go back to using 20mm axles.
I had one hub completely grind itself into dust, the pitted cup locked onto the bearings, the turning motion of the wheel tightened the cone. The wheel stopped spinning instantly, the bearings were powder, hub a total mess.
Seriously don’t see the selling point of using heavy, high maintenance hubs.Posted 4 years agosingletrackmindMember
Trail-Rat Yes , I am sure the 6600 uses a much smaller ball bearing 5/32? or something , and alot of them .Posted 4 years ago
LBS#1 reckoned bin wheel and buy something built using DT or Hope hubs if wanting long life and replacability.
LBS#2 Is looking into options but not hopefulahwilesSubscriber
Toasty – Member
Seriously don’t see the selling point of using heavy, high maintenance hubs.
but they’re not high maintenance.
the cheaper-than-deore 475 hubs on my commuter have done over 4000km, often in filthy weather.
i took them apart a couple of weeks ago (1 year service), the ‘old’ grease was still clear. 1 hour and a cup of tea later, the hubs were full of new grease, and running beautifully.
i see no reason why they can’t go 2 years (another 8000km) till their next service.
can you see the selling point in ‘cheap and reliable’ hubs?Posted 4 years agoToastyMember
can you see the selling point in ‘cheap and reliable’ hubs?
Yes, but that’s different words to what I said. I’ve had cartridge hubs, those on my Tricross’s Rovals for example, that have lasted 4 years currently without being touched.
For anything vaguely light I’d not go near cup and cone, all my issues specifically were with XT hubs. The Deore hub you’re quoting is like half a kilo, it’s probably got another Deore hub inside it, for when anything goes wrong.
I’d rather get a decent set of wheels, that I can swap the axles on regardless of what frame I’m using. That use the perfectly fine, industry standard rotor fittings. With the option of a 20mm axle. I’ve bought a set of Hope drifts and they’ve been fine on every set of cartridge hubs I’ve used to be honest.Posted 4 years agoSTATOMember
XT756s are (google says) Front:244g Rear: 435g… Hopes are Front 185g Rear 295g
These weight figures – is that including axles for the cartridge hubs..?
Those weights are the older 6bolt xt, tho both QR without skewers.
Newer centrelock is lighter @ 180g F and 369g R (according to this)
But as states ealier is this thread, those hubs have poor reliability due to smaller bearings.Posted 4 years ago
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