I have a problem with my geared hub and I am looking at my options for repairing it but I don't know how common it is that bike mechanics encounter and understand hubs with gears inside. Can I just assume any bike shop will be competent enough to look at this?
CityCyclingEdinburgh Forum » Questions/Support/Help
Are mechanics with experience of hub gears uncommon?
(16 posts)- Started 6 years ago by seanspotatobusiness
- Latest reply from wangi
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Posted 6 years ago #
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I would take it to cycleservice, Harts or bike works
Posted 6 years ago # -
@Seanspotatobusiness. Hmmm. Mabe not. I had a nexus 8 I had a lot of trouble with. Replaced under warranty but continued to break a lot outwith warranty. The mechanic who could fix it, let's say Mr G is his name, was eventually prevented from conducting such repairs. Lots of these nexus 8s had broken, largely the seal was not sufficient to withstand our rain and would get into the mech and dissolve the lithium grease. All that was allowed was to remove the gears from the wheel put them in a grease bath then put them back in the wheel.
The alfine 8, alfine 11 and indeed the nexus 7 have fewer issues.
I know there are mechanics who understand these gears, some though are not allowed to tinker with them.
Posted 6 years ago # -
Is it a Sturmey Archer?
Posted 6 years ago # -
Yeah it's a Sturmey Archer 5-speed and it's been nothing but problems; impossible to calibrate. If it's broken I guess I might get a Nexus 7 which I should have done the last time. :(
Posted 6 years ago # -
SA3 speed never really faulty. SA5 speed less reliable. SA3 spd 10mm narrower than a Nexus8 so I needed spacers when the lovely folk at the Bike Chain renovated the entire bike. So just checjk widths are compatible. if you do not need so many gears I would go SA3 but Nexus 7 certainly better than the nexus8
Posted 6 years ago # -
Sturmey Archer 5-speed - rarely see working ones.
SA3 is best.
SA8 is odd as it's really for small wheeled bikes so chainring on front has to be small on a 26" wheeled bike.
Alfine 8 - easy to synch with marker and inline adjust on gear 4. Now has rapidfire levers round the right way after years of Shimano making them back to front. (ie they are now thumb for uphill, finger for downhill)Posted 6 years ago # -
@Laidback - well I think the Alfine levers are now the wrong way round. After years of using one that was thumb for downhill, finger for uphill, I'm still occasionally confused by my new one that is what you think of as the 'right' way round...
Posted 6 years ago # -
Is the SA 5 speed skipping like crazy under load?
The sliding key gets chewed up, apparently no matter how careful you are. They're not expensive and not difficult to replace but it's not as good as the 3 speed. Not nearly as good.
If you want to replace it I can tell you how.
Posted 6 years ago # -
after years of Shimano making them back to front
I still resent the death of 'rapid rise' Shimano rear mechs. Means my shifters are thumb/finger asymmetrical and at my age it takes time to re-learn. Sonny. Don't never get old I tells ya.
Posted 6 years ago # -
@Greenroofer - You're right that once you get used to a shifting set up it's a pain when they change.
Rapidfire levers for derailleus are though the more common item so easier for someone changing / hiring a hub geared bike.Posted 6 years ago # -
My Nexus 8 is fine in 1 & 5 but slips with heavy pedal load on the other gears...
... Anyone get any pointers on improving that?
Ta/L
Posted 6 years ago # -
@wangi, that is interesting.I will doubtless be corrected as to exact specifics but the nexus 8 is basically a set of 4 gears then there is a jump to another set of four gears. My issues were often that it became stuck in one of the sets and would not shift to the other, which was very bad if stuck in 5 through to 8.
But you can get the first gear in each of the two sets but then slips in all the other gear. Which is of course rubbish.
Posted 6 years ago # -
@wangi
Put gear into 4 on shifter. Asjust at that end till indicators line up.
Pretty sure it's same as Alfine but doesn't have window to align marks. So not as easy to see but they are there.
Harts, Bike Works, Cycle Service will check it's synched.
Of course you may have tried that in which case it needs looked at.
As it just relies on one cable that may be worn and needs replacing or lubricating.Posted 6 years ago # -
Assuming it's indexed properly, as detailed above, and it's still slipping it could need some fresh lubrication - a service in other words. They can start doing odd things when they're dry.
Posted 6 years ago # -
Thanks all.
Posted 6 years ago #
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