[iriverdude]

Yeah I was considering a Nexus, but could tell by spinning the wheel in top gear the overall gearing is too low, you could replace the chainwheel cog with a large one to get a larger ratio. Basically 1st is like first on a mountain bike. I never used a gear that low on the road. Shouldn't be too expensive, if you know what gear ratios you want, ie if you have a road bike perhaps looking at similar gearing, 42/12-25.

Dan I've got a Giant racing bike, seems fine. Quite a few people don't like carbon/alu frame mix, something to do with the contact points between the two materials. Alu frame and carbon fork is fine though.

 

[Old Pa]

Quote:

Originally Posted by Aptmunich /img/forum/go_quote.gif I really enjoy the bike, but sometimes wish it had a bit more speed in the high gears. The first 2 gears are far too "spinny" (what's the term I'm looking for?) and the 8th gear isn't quite as fast as my old derailleurs were on my old bike.

If by too "spinny" you mean too easy to pedal under given circumstances, then those gearings are too "short" for the circumstances. "Spinny" gears are for steep hills, long climbs, and stiff headwinds; you'll need them too. the human body as an engine is most efficient spinning the pedals at a steady speed north of 50RPM; match your drivetrain gearing to the terrain to keep spinning the pedals at a high steady speed.

 

[Aptmunich]

Quote:

Originally Posted by iriverdude /img/forum/go_quote.gif Yeah I was considering a Nexus, but could tell by spinning the wheel in top gear the overall gearing is too low, you could replace the chainwheel cog with a large one to get a larger ratio. Basically 1st is like first on a mountain bike. I never used a gear that low on the road. Shouldn't be too expensive, if you know what gear ratios you want, ie if you have a road bike perhaps looking at similar gearing, 42/12-25. Dan I've got a Giant racing bike, seems fine. Quite a few people don't like carbon/alu frame mix, something to do with the contact points between the two materials. Alu frame and carbon fork is fine though.

Err, so I would need to replace the bit at the front or the back? Sorry, really clueless

These are the bike specs if it helps:
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[iriverdude]

Old pa, yes you want to keep it around 60-80 rpm, but give an example if you stick it on mtb front small chainwheel, and only use rear gear selection all of them are too low. Ideal if the road to work is a 45' incline for miles. I would say if the gears stay around roadie middle ring. With perhaps 1st gear a bit lower (seen rear sprockets that are much bigger than the one next to it)

 

[steviebee]

 

[vulc4n]

2008 Gary Fisher Rig with some upgrades... Alfine hub out back

 

[Old Pa]

Quote:

Originally Posted by iriverdude /img/forum/go_quote.gif Old pa, yes you want to keep it around 60-80 rpm, but give an example if you stick it on mtb front small chainwheel, and only use rear gear selection all of them are too low. Ideal if the road to work is a 45' incline for miles. I would say if the gears stay around roadie middle ring. With perhaps 1st gear a bit lower (seen rear sprockets that are much bigger than the one next to it)

I thought we were talking about Aptmunich's steel commuter with a single chainwheel and a Shimano in-hub 8 spd rear. I haven't counted teeth on that bike, but my guess is it's pretty much in the middle of the range; not a lot of choice compared with modern 27 or 30 gear triple chainwheels. My answer was addressed to that. You could climb a tree with any of my triple chainwheel rigs.

 

[ricksome]

Old Pa: Post a picture when you climb that tree. No photoshop please. Also, do not put your bicycle on a fallen tree and rotate the picture 45 degrees.

Being my usual cocky self......Rick

 

[Old Pa]

I specifically said "you" could climb a tree with any of my triple chainring rigs, not me.

Ahh, the literalism of youth! Me, I just love all trees like everything else about Mother Earth.

 

[intoflatlines]

I just helped my girlfriend buy her first "real" bike (i.e. not from WalMart, etc.)

2008 Cannondale F5 new for $450. I like it a lot, and more importantly, so does she.

 

[ricksome]

Old Pa: I can climb a tree with your chainrings. I am reaching for photshop now.

 

[Audiotodd]

At the moment I'm racing an aluminum Cannondale CAAD9 with Shimano Ultegra and deep aluminum rims. I built it up over a couple of months because I had to cobble together parts but I think it turned out really well. Its by no means the most expensive bike I've seen but it works really well for me.

 

[DanielCox]

Racing on a carbon framed Focus (not sure if they sell that in the US) with Ultegra SL but hoping to get enough money in the summer to build up a cyclocross bike and go rampaging through the cold Devon countryside.

 

[Audiotodd]

Quote:

Originally Posted by DanielCox /img/forum/go_quote.gif Racing on a carbon framed Focus (not sure if they sell that in the US) with Ultegra SL but hoping to get enough money in the summer to build up a cyclocross bike and go rampaging through the cold Devon countryside.

Focus is hard to come by in the US but they are really nice looking bikes. Congratulations.

 

[shigzeo]

when you guys say 'racing', do you mean you actually participate in races? or do you mean race down the road?