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5

No, it is not a good idea. You'd be spending more than the bike is worth even for a basic internal gear hub (even assuming you got the wheel rebuilt for free using the existing rim and spokes, if possible), let alone buying a rear wheel with an IGH built in. You do need a chain tensioning pulley or horizontal dropouts, which while can be built more robustly ...


5

If the wheel is built with the appropriate rim (i.e., a rim with a braking surface) you should be fine. The hub simply has the mounts for a disc brake, one does not have to be mounted.


4

This is done by changing the primary gear ratio with your chainring and, if possible, the cog on the hub. If you make a large change or if the your existing chain is sufficiently worn, you'll likely need to get a new chain as well. As mentioned in the comments, you need to be careful about making the gearing too small (easy to pedal), as you might end up ...


4

You have to have a chainring in the front attached to the crank and a cog on the back attached to the internal gear hub to use an internal gear hub (IGH) (and the chain goes between the chainring and cog, as on a usual single speed bike). An IGH drivetrain installation looks like this: (Looks just like a single speed from the outside with a 42t in the ...


3

Oil leaking from the hub has been an ongoing problem for me too. When the bike was still new there was an oil leak from the gear changer side which went to Shimano (twice) before the internal seal was replaced (the external seal was replaced the first time to no effect. Over a year later the leak started again and this time Shimano have had the wheel for ...


3

It's pretty easy if you have a spoke cutter than are willing to run a funny spoke pattern. I suggest buying (ideally second hand) a three speed hub and lacing it into the 16" rim yourself. With a wheel that small with a child on it there's no enough load to make strength an issue, so you can reasonably either lace a 20 spoke rim to a 36 spoke hub using ...


3

My experience as a bicycle mechanic in the Netherlands: don't mess with it. If it is an Shimano, it will probably run >100.000 km. If it is a Sturmey Archer, SRAM or any other well known brand, it will mostly do >50.000 km as well. If there is a small hole for lubricant, only do this once a year or so, with some thin grease, but not oil. Oil is to thin. ...


3

In my experience with various internal gear hubs on Dutch bikes, I found there's no maintenance necessary: I've never heard of them breaking down because of lack of maintenance. Here's a blog post that concurs. My current Gazelle bike manual also does not explicitly mention any maintenance on the hub gears, only how to adjust them.


3

I drive the same Rohloff for over 8 years and do not see an end of its lifetime. I cannot speak for other brands, but in all posts above the free-of-charge service by Rohloff, as part of their special corporate culture was not mentioned. Up to now, whenever there was a problem, the thing was being send to Rohloff and I had to pay nothing. That being said, ...


2

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' ...


2

I'm very skeptical that an internal fault in the hub is causing the external mounting of it to loosen up... unless you are experiencing frequent total rear wheel lockup and skidding, maybe. I have a SRAM P5 hub that I built into an old mountain bike myself. Originally I ignored SRAM's torque instructions for the rear axle nuts and just tightened them by ...


2

The switch to an IGH is never as simple as it looks. There are a couple of things to consider: Wheel: Yes you will need to have a new wheel built replacing the hub with a IGH hub. You can reuse the rim (if spoke count matches) but will also require new spokes. Dropouts: The Globe Works 3 has a semi horizontal rear dropout while the Globe Works 2 has a ...


2

The simple answer is yes, you can add washers to the axle and shove it in. If you put all the washers on the chain side the disk brake will still work without modification, at the expense of a crappy chain line (assuming you have derailleur gears - with a singlespeed you'll probably have to change the BB or you'll often drop the chain). Or you can space both ...


2

If we use the Sheldon Brown Gear Calculator set to metres development (although any other unit will work adequately), we see that the range for a 39-53 x 34-11 system is 2.5 to 10.4 metres developed per crank revolution, yielding an overall range of 416%. The widest range options from various companies are the Shimano Alfine 11 hub, which has a range of ...


2

I have a 3 year old Spot with an Alfine 11 with about 11,000 miles on it. The belt lasted about 9,000 miles. The hub started leaking at about the 7,000 mile point, and will currently dump all of its oil about every 400 miles, making for a really greasy belt. The leak is around the inner seal / gear changer cog. The large dust cap seal doesn't leak. As ...


2

I've got shimano internal hub for 5 years mainly to commute. pros: no maintenance - at the beggining easy changing at red light or to jump on the sidewalk cons: harder to change tire when flat one day a car bump my wheel: I add to change the whole wheel+internal hub after some time (3000km) some gears are screwed, so it "jumps" when I press too ...


1

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).


1

There are a variety of industry solutions for crimping stops on to a cable like this. They sometimes require a special crimp tool, but you can usually get by with a vice. You might start with something like this: http://www.savacable.com/pages/prod_02_04.html See the second entry, "Stop Sleeves"


1

What you know right now is that there's quite a lot of it and it's quite greasy. Which is useful, but not especially useful. One thing that occurs to me is to question whether someone else might have oiled the belt for you? Has it been in a shop, or do you have someone else in your house who maintains a bike? Is there a source of fumes where you store your ...


1

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 ...


1

I bought a CRX City Commuter bike in 2007, with a Nexus 8 hub gear. I've riden it 18kms (approx 11 miles), 4 days a week, since then, excepting holidays. A bit over 20,000km in all. It's not particularly fast or mechanically efficient, but very reliable. In terms of maintenance, Ive had it packed with grease once and that's all. In contrast, my brakes ...


1

In my ~1 month experience with the Deore (11 speed?) internally geared hub compared with well-maintained derailleur systems of comparable quality and newness, the internally geared hub has a noticeable amount of internal loss. Note that this test was carried out about a year ago. I ended up returning the bike. First test (idle loss): turn the crank a few ...



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