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4

I have a Shimano Nexus 7 internally geared hub. When replacing my chain, I have a chaintool to remove the pins to shorten chains, which usually start out the length intended for a dérailleur. When the chain starts to wear, I move the wheel back a bit in the horizontal dropouts. See Sheldon Brown's entry for dropouts. I can't tell from your picture what ...


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"Old" bikes – those from before the '80s or so – usually have horizontal dropouts that allow maybe 2 or 3 cm of fore and aft movement. That should give you enough room to tension the chain. I would think that a 5-speed bike would date from this era and be built with horizontal dropouts. If that's the case then you can probably don't need a chain tensioner, ...


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From your photo, it looks like you're fine. The load from the hub is being taken on the anti-rotation arm that you've attached to the lateral tubes of your mixte. So the anti-rotation washer (I'm presuming you're talking about the orange washer) is not being loaded. Also, as described in the responses to your previous question, your dropout is just ...


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It is possible -- you can either find a 36 spoke internal gear hub (since you have a 36 hole rim) and have the wheel re-built with the new hub and bodge on the cables for the IGH shifting. Alternatively, there are automatic shifting hubs (e.g. the SRAM Automatix) which will also have a coaster brake and no shift cables. That being said, its probably going to ...


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Put your shifter in 4th gear. Adjust the cable tension so that the yellow lines match. There really isn't more to it. Not much to do wrong. If you can then shift all the way up to 8 and down to 1, the basic installation is correct. However ... from my experience, these hubs change a little over time. Mine (Alfine 8, basically the same thing) shows slippage ...


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Choosing a grip is a matter of personal preference. If you're worried about the fact that the Nexus shifters require a smaller grip on one side than the other (due to the shifter taking up room), you can get grips that are made to mate with an internal hub shifter like the Nexus. Alternately, since these can be difficult to locate, you can cut down the ...


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User6527 is wrong there. You can not use derailleur shifters due to the different cable length that is pulled or pushed to shift to another gear. You can not use other brands' shifters either for the same reason. The shifter you mention yourselve is available in black and silver, and both with and without integrated brake lever. There is also a 'cheaper' ...


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As @Kibbee has stated the IGHs do have a different OLD, although Nexus hubs can be spaced out to 135mm with spacers/ bolts/ washers. You need to measure the Dahon's rear dropout spacing. I can't find anything to suggest otherwise so I assume it's 132mm, in line with other commuter type bikes. The limiting factor is dropout spacing. The Dahon is an ...


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OK if the tire was blown off the rim then I highly suspect that is the whole story. When the tube leaks out the because tire bead has come out the tube will burst and you will see a slit. A tube outside a tire cannot take much pressure. Most likely when you went from 60 to 85 psi it was enough pressure to push the tire off the rim (bead). I have ...


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You likely need to tighten the hub bearings. I'd take it to a shop and ask for a hub bearing adjustment. On most hubs I'd say you can do it yourself but the Nexus series are complicated and have different features depending on the model. This means most step-by-step directions for standard hubs won't apply. E.g. it may have a brake built into it. ...


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I'd start with a new chain as a simple maintenance matter - this should have been done when the new rear cog went on anyway. Then compare how your new chain lies around the front chainring compared to the old one. It should mesh fairly well over the whole length of contact, not having phased waves of contact and spaces. Finally, are you positive its the ...


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It may be a broken brake shoe, or possibly a broken clutch spring. This usually happens when the axle nuts are not tightened to the correct torque (30Nm), or the wheel is put back on without the non-turn washer. Take it into a shop that has a Shimano dealer account. If you want to fix it yourself, they can order you the entire internal assembly (it comes in ...


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Sounds like you know the chain will work with the sprocket on your hub. You will need to shorten the chain, if you use the same one. It's usually better to get a new chain, and make the chain just long enough so that it has a cm or so play with the back wheel a little forward of the middle of the dropouts. As the chain wears (some say stretches) you will ...


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Alfine 8 and Nexus 8 can use the same shifters. I'm guessing you need to adjust the shifter by turning the barrel adjuster on the shifter (there are marks on the hub which need to be lined up in order for it to shift properly -- check the setup instructions for the hub/shifter).


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Looking at the Shimano site is kind of confusing. There are 2 alfine models listed. SG-S700-S SG-S501-S The first has an axle length of 187mm, and an over locknut distance of 135mm The second has an axle length of 135mm and an over locknut distance of 187mm I think they might have swapped the measurements. There are 2 Nexus 8 speed hubs that I found. ...


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The Jtek bar end shifter claims to work with both Nexus and Alfine 8 speed hubs, so I don't see why other shifters wouldn't. A comment on this review of the Alfine hub backs that up: "Apparently the Shimano Nexus Inter-8 twist shifter can be used with the Alfine hub if you want to avoid endless button-pushing."


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I have a Sturmey Archer 3 speed hub and have similar ticking sounds. I suspect it's the various parts of the planetary gear meshing and rolling against each other. It's a pretty complex little mechanism.


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That comes down whether the internal mechanism of the different Nexus 3 hubs are the same or not. My guess is they are the same. Some options for you: I had a similar issue with a Nexus 8 hub. In the end I checked with a Shimano approved service center in near me (looked up on Shimano's page). I talked in person to the mechanic, and he knew which would ...



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