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Hub gear slippage

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JBunyon:
Wheel do(get it!) Sorry.

arry_b:
Do you need all five gears? The three speed SA hubs are simpler and more reliable.

Poacher:
In your second post you say it felt as if the slippage was due to the chain not engaging with the sprocket.
This suggests to me that the problem might be chain / sprocket related rather than the usually reliable hub.
Has this chain been changed during the 4500 miles you mentioned? If not, try a new one; it will be well worn after that mileage and is likely to have damaged the sprocket to the extent that it will also need replacement - an opportunity to lower the gearing with a slightly larger sprocket if you want.

JBunyon:
Thanks Poacher.

Embarrassed to admit that the problem is still there: 31st December 1705 hrs. I cant go to the garage again: I think the wife would kill me...or I will killmyself. This morn changed the gear cable(again!) T'old one had frayed,and I thought...is that nut tightened,or wot?

I changed the set-up sprocket sometime back for another + 2 teeth(?)sometime back. I gotta hill that I like to go up with one gear spare. My knees and age + arthritis have impeded my valor.

This I know: to work things out to get to the route cause o this torture could take several trips to a bicycle store or cycle specialist. Have I got the time or patience to go with it? Then,would any bicycle shop or specialist guarantee the work as in,ride my machine out to a hill to ride up and change gear? S/he could say the work is done only for me to find it isn't. The thing is,you have to ride the machine under load to find the fault. And working through each department of the machine to find the said fault could men many visits to the shop and many parts needing to be replaced...at cost. Maybe its not the douch,but the wasted hours going back and forth sorting stuff out. Right now I have 4 gears that work whilst the fifth is intermittent: to obtain 2 lowest gear go into lowest gear,come back to secure second lowest gear. To try to go into second lowest gear from third involves the pedals not engaging.

I'm not liking it as it is,but feel some attachment to the bike. For £300 I can get a new Dawes Duchess. It does seem a bit OTT to swop my present Pashley for a Dawes,but hey!,fellas just chuck in an old(e) bride for new theseadays! (Sorry,PC alert,yeh girls do it too)

I sorta grow attached to the bikes I have. Don't like to dismiss 'em in any way. But this is sorta fuddy-duddy nowadays,yes? Maybe Gret excepted!

rogerzilla:
Need to know the make and model of the hub gear.  if it's a Sachs or SRAM, they don't make spares for them any more but German suppliers still have some in stock.  Your biggest problem may be finding someone who can work on hub gears.  I've overhauled almost every Sturmey-Archer 3-speed, including the ASC, and I know about Sachs Duomatics and 3-speeds, but nothing else.  Problems can usually be solved by adjustment and/or lubrication but internal parts do sometimes break or wear out, such as axle keys on Sachs 3-speeds and planet pinion pins on the Sturmey-Archer AW.

If the gear ratio has been made lower than recommended, it can do internal damage as they are designed with a maximum torque in mind*.

The best option, if something is broken, is a new rear wheel, or a rear wheel rebuilt around a new hub of the same type.  Any decent bike shop can do this, whether they understand hub gears or not.

*a local CTC rider once used a normal Sturmey-Archer AW on a tandem ridden by a strong couple, and it didn't last long - half the teeth were stripped off the planets.

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