0
votes
1answer
96 views

Can an IGH have the same maximum overdrive-ratio as a crank-sproket setup?

Is there an IGH that gives one the maximum overdrive-ratio that one might get with a 39-53T crankset and a 11-34T freewheel? If not, what is the mechanical roadblock in making one ?
3
votes
1answer
188 views

Is it a good idea to switch to hub gear?

I have a Firefox Roadrunner Pro. I wanted to know if it was a good idea to install an internal hub gear on it. I want to install it to reduce dust accumulation and oiling and to simplify the ...
2
votes
2answers
76 views

Using a series of hub gears

I have an idea and I'm wondering if it's feasible. For an upcoming recumbent cargo touring build, I wonder if I could say use an 8-speed hub gear connected directly to an identical 8-speed hub gear, ...
6
votes
4answers
530 views

Comparing gear ratios on different bike types

How can I compare gear ratios on different wheel sizes? How can I compare gear ratios on MTB with tracking bikes with bigger wheels? How can I compare gear ratios with gear hubs?
3
votes
2answers
573 views

Make a 3-gear bike go easy on uphill

I want to see how can I make this 3-gear bike go easier on uphill. It has an internal gear hub. I don't know much about bikes but I'm thinking if I can merely replace the hub for one with 14 gears ...
2
votes
3answers
1k views

Replace S-RAM S7 gear hub with something better

I have an SRAM S7 gear on my bike, and I'm not content with it. I find it more or less impossible to get the adjustment right. Supposedly I just have to leave the shifter in position 7 and then ...
2
votes
1answer
1k views

Shimano Nexus Inter-3 internal gear hub stuck in second gear?

The situation My Shimano Nexus Inter-3 internal gear hub is stuck in second gear (it's a 3-gear hub). When I take the external cable housing apart, I can move the pin that goes inside to change gears, ...
22
votes
4answers
25k views

What are the pros and cons of internal gears?

I've had my hybrid 24-speed for a bit over 3 years now, and just last weekend, when looking for a bike for my wife, discovered internal gears. Suffice to say it blew my mind when I saw 7-speed ...
26
votes
7answers
5k views

What's the efficiency of hub gears compared to derailleurs?

What's the efficiency of hub gears compared to derailleurs. I know that hub gears are not as efficient, a part from being heavier, how much will I loose in performance if I use hub gear?