Bicycle Types Guide

[mickle]

Yertiz!

50mph my arse.

 

[BrumJim]

No wind resistance on the moon.

 

[arallsopp]

Edit: Just been reading about velomobiles. Really interesting concept. Would love to have one myself except I would look like a wally, the price and the uphill struggle I imagine you would get. Are their gear ratios comparable to mountain bikes?

For those I've met, the low end gearing is about 1:1. The high end is limited by how much chain you can soak up (I've seen 70/11, but not on a regular triple) and what additions you make to the powertrain (schlumpf, dualdrive, rohloff, etc). I err on the side of having a gear low enough to get through Cornwall. I could do with more in the top end, but generally when the gradients tip me to somewhere north of 35mph, I'm not really pedalling anyway

 

[ufkacbln]

50mph my arse.

How could you be so cynical......... you'll be suggesting that the moon landings werea hoax next?

 

[ufkacbln]

For those I've met, the low end gearing is about 1:1. The high end is limited by how much chain you can soak up (I've seen 70/11, but not on a regular triple) and what additions you make to the powertrain (schlumpf, dualdrive, rohloff, etc). I err on the side of having a gear low enough to get through Cornwall. I could do with more in the top end, but generally when the gradients tip me to somewhere north of 35mph, I'm not really pedalling anyway

There are ways to cheat

My Gekko has a 34 on the front coupled to a standard 15 toothed Rohloff on the rear.

However I also have Shhlumpf High Speed Drive which converts the 34 to an 85 on the front, and all of this with no change in chain length or tennsion!