[klunky]

Can anyone suggest a nice gear ratio for the bike I am building?

I have just purchased a shiney new evil doc and intend to build it up with 26" wheels and single speed it.

The bike will be used for everything, riding to work (only a few miles) some street some DJ (in summer) and general trail riding.

I think I want the bike to be more biased to sprinting/acceleration so I can get up some climbs if I need rather than a flat out top speed.

Im thinking about running either a deity crank or a shimano xt. Does anyone have any feedback on the deity stuff?

 

[Boxxer]

Deity stuff is pretty good, ive set up alot of bikes with their bb/crank/stem and bar set up.

Ratio for sprint would be like a 25/12 for a 26 inch bike. Usual ratios are 2/1 through 3/1.

The problem with 2/1 is that you find your self spinning out when between double sets if you need a little boost of speed... and the same could happen when you ride park.

just my .02

 

[ÆX]

i have a 26-13 2-1. its a little small.

i end up spinning just riding around town.

28-13 - 26-12 i bet would rule.

 

[manhattanprjkt83]

i have a 26-13 2-1. its a little small.

i end up spinning just riding around town.

28-13 - 26-12 i bet would rule.

Running a 28-13 here and it is pretty much perfect couldnt ask for more on my first singlespeed set up.

 

[klunky]

26 12 sounds good to me I dont really want to run a bash gaurd yet so the smaller the sprocket the better.

My experiance of fitting BMX style cranks has never been fun, I like fitting HT2 style set ups and ISIS as they are a no brainer. Does the Diety set up work easy enough or does it take fitting adding removing and adding spacers for ever to get right?

 

[Boxxer]

Youll add and remove spacers... but its not that big a deal. I usually start with one thick spacer on the drive side behind the chain wheel and then 2 thick spacers on the non drive side and adjust from there.

After Im happy with the chain line on the drive side, i take calipers and measure from the inside of the crank arm to the center of the seat or down tube and then set the non drive side up so its the same distance.

 

[EricMcFlow]

FWIW I am runing a 28-12 now. It feels a lot better once you are moving then my 36-16 setup. Its only a small bit steeper, but works pretty well for me so far.

 

[opjones]

I'm running 34-17 w/26". I'm moving down to a 16 in the rear because I want just a little more speed.

 

[Evil4bc]

I'm running a 27T up front and 12T in the rear on my 26" bike , steep hills kinda hurt but it's rides good for trails and park

 

[opjones]

Also in the Deity instructions they give you a tip on how to get your chainline straight before you get everything together. Follow it, it works great.

 

[Cru Jones]

I run a 32-13... I know, that's crazy, right? But, I love it for my local trails... slight downhill dirt jumps. It sucked when I took it out to Sheep Hills, though. I think 2 to 1 is way small. If I rode normal stuff, 29 or 30 - 13 would be about right.