What's your favourite gear ratio?

+1

Get both, your dropouts will be able to accommodate the change. It's only a tenner for another sprocket.

It's only a tenner for another sprocket.

Not if you appreciate the quality of a Phil Wood sprocket, or even the bling of an EAI Gold Medal.

i calculate it as 69.9 and 74.3

using 27 x chainring/cog

That's trackie talk.

i calculate it as 69.9 and 74.3

That would be true for 700x30c tyres

Schwalbe Speed Cruiser 30-622 - Nice.

Not if you appreciate the quality of a Phil Wood sprocket, or even the bling of an EAI Gold Medal.

It's this guys first fixed gear.

The money will on a Thomson BMX stem or something instead...

mitre - so what would the 27 be for 25 tires?

49-13

Laps of Richmond Park just about doable (up to a max of 4).

Never run out of gears on a group ride.

Hard rides out to Windsor.

Surrey Hills impossible.

building up a singlespeed for my brother for his chrstmas present (first ever foray into building a bike) and i've gone for 38/16.. will this be ok? I dont think he has ever done any excercise before..

That's pretty spinny (I used to ride 39 x 16 and found it a bit silly riding fixed) but should be ok if it's a freewheel as he can coast.

mitre - so what would the 27 be for 25 tires?

44/17 44/16
68.9 73.2

49-13

Laps of Richmond Park just about doable (up to a max of 4).

Never run out of gears on a group ride.

Hard rides out to Windsor.

Surrey Hills impossible.

...is that like 99GI? That's pretty big for RP!

...is that like 99GI? That's pretty big for RP!

+1 you must have legs like frikken tree trunks.... I've been wimping out for the last few week doing RP on 44/16.... I'll get my coat

46 X 18 for the fixed (charge scissor with BMX spit riser bars) for going uphill in Lisbon - might add a 16T later for going speeding just for the kicks

46 X 16 for the freewheel paddy wagon (for sprinting and generally exercising around the city and possibly some marathons) - might add a 14 or 15T cog later on for bombing from lisbon to cascais

...is that like 99GI? That's pretty big for RP!

I ride up the hill to the start of the H25/2 on 53/14; it's surprising what you can do when you don't have a choice.

320' in 2 miles, a bit more to the roundabout at the top as the start is 1/4mi. back down the hill.

This one is useful if you can't get the Java one to work.

http://www.sheldonbrown.com/gears/

might add a 14 or 15T cog later on for bombing from lisbon to cascais

Have you done the run from Guincho to Sintra - great roads & views, just very dodgy drivers everywhere.... makes London feel v safe

Have you done the run from Guincho to Sintra - great roads & views, just very dodgy drivers everywhere.... makes London feel v safe

not yet, but i will. probably next spring or even before. yeah, drivers around here don't have much respect for cyclists but hell, i'm big and they're afraid that i bust their cars ^__^

the problem going from guincho to sintra are the steep climbs. cannot do those with 46 X 14 or even 15, no fucking way... i'd be dead halfway. But 46 X 16 would be ok I guess...

building my first fixie.. thinkin of plumbing for 42x14 as this is my most used gear on my geared bike and i just gotta start somewhere cos sprockets don't cost the world and i was never very good at maths and all the gear ratio calculators on line are doing my swede in!!

I gather this combo has only one skid patch but i'm gonna use it for commuting in flat old oxford not skid comps so i'm reckoning this won't be a prob. whadda the pros reckon? (don't shout!! first fixie, and i'm not the most practical spanner wielding lass but i'm up for the challenge!)

http://www.sheldonbrown.com/gears/ try this one, i was using it last night, verry good.

86.4 on the track bike. Tried higher but it's too hard to get the jump on people, tried lower and you spin out, especially when I race with the seniors (I'm youth) so my 86.4 is a good inbetweeny gear thats good for top speed, but can also be accelerated quickly when I get the pistons firing

Peace out!
Steve

I run a 32 17 on my genesis, does fine for most things of froad..just :)

At the moment, 44x11 on 26"x1.25 MTB.
Not bad to commute with.
Had bit of a hard time though going down south to Surrey last month, hills & strong winds... Wasn't nice.

Saving up for a decent touring/road bike in the new year.

49x18 (71gi I think), pretty ideal for me. 18 skid patches is quite reassuring.

44x16.... 74"(ummm it's the only one I've tried though!)