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Singlespeed and teeth

Old 09-11-18, 09:20 PM
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2pedals5
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Singlespeed and teeth

If you got single speed bike, would you tell me how many teeth you got on front and rear. Do you have freewheel or fixie? Thanks.
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Old 09-11-18, 09:31 PM
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fietsbob 
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why? you choose your one gear ratio according to the terrain you are riding over..

say what that is..

Over..


FWIW,
Track racers have a bag of different cogs and chainrings ..
they change according to current situation..

A cheap build , discarded parts .. I had a 22/42, 26" wheel..

freewheel , JRA, on the very limited flats, in no hurry..

now i go with an IGH.. because not much is that flat.




.....

Last edited by fietsbob; 09-11-18 at 10:02 PM.
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Old 09-11-18, 09:33 PM
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2pedals5
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Originally Posted by fietsbob View Post
why? you choose your one gear ratio according to the terrain you are riding over..

say what that is..

Over..
I'm just trying to understand if my ratio is proper or not. I want to have more teeth to go fast. Thought id ask you guys to get better ideas.

Edit: my terrain is mostly flat.

Last edited by 2pedals5; 09-11-18 at 09:41 PM.
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Old 09-11-18, 09:41 PM
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It is probably better to ask this in the Single Speed/Fixed Gear forum.

I ride 48x16 fixed. It is hilly where I live. Most people would say that my gear it too high and that I should have a 46x16 or a 48x18 but I enjoy it.


-Tim-
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Old 09-11-18, 09:43 PM
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Originally Posted by 2pedals5 View Post
I'm just trying to understand if my ratio is proper or not. I want to have more teeth to go fast. Thought id ask you guys to get better ideas.

Edit: my terrain is mostly flat.
Originally Posted by TimothyH View Post
It is probably better to ask this in the Single Speed/Fixed Gear forum.

I ride 48x16 fixed. It is hilly where I live. Most people would say that my gear it too high and that I should have a 46x16 or a 48x18 but I enjoy it.


-Tim-
will do. Thanks.
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Old 09-11-18, 09:49 PM
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42/18 CX.

If you want to go fast, you should get really big gears, at least 50/14 unless you live where it's flat, then 50/12.
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Old 09-12-18, 03:19 AM
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I have two fixed gear bikes one for winter one for summer...I am more of a spinner than a masher and I prefer lower gear ratios...I ride 46/18 fixed gear which is about 68 gear inches, it's a perfect gear ratio for my needs, it gives me quick acceleration, reasonable speed and allows me to climb hills with ease. I have a lot of traffic lights and intersections to contend with so a lower gear ratio makes it easier to control the bike and easier to accelerate or slowdown...My other fixie which I use for riding in extreme winter conditions is set up with a very low gear ratio of 36/17,
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Old 09-12-18, 05:52 AM
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I run 44x17 on my fixed gear:

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Old 09-12-18, 07:01 AM
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Originally Posted by 2pedals5 View Post
I want to have more teeth to go fast. Thought id ask you guys to get better ideas.
Your speed is a combination of your gearing and your ability. Getting a taller gear will not make you faster unless you’re strong enough to turn it.
And riding tall gears, consistently pedaling hard-and-slow, is a fairly common cause of knee troubles.
You should know your cadence before you go shopping for rings or sprockets.
Maybe you should be working on riding technique instead of ride technology.
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Old 09-12-18, 07:19 AM
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53 - 16 on flat terrain. YMMV
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Old 09-12-18, 07:20 AM
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Use a gear range calculator - https://www.sheldonbrown.com/gear-calc.html You only have a couple of entries, the tire size, the crank length, and the size of the chainring and rear gear. It makes comparison simple.
I never did understand the allure of a one speed bike having progressed from that as my first bike to a current 30 gear (some overlap) bike. I really mostly use only the middle chainring and the 10 gears on the cassette but it saves my knees from undue stress.
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Old 09-12-18, 08:50 AM
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42/16 or 17, depending on my legs. This is fixed, road bike. I want to upgrade my chainring though and I'm having a hard time finding a 42T, 144BCD ring so may go larger and get a new sprocket or two to match. Terrain is flat-ish and I'll cruise just under 20mph with this. I've pounded up some hills, it took some effort but they aren't that long around here. Downhills aren't so long either so while math says I've hit 140-ish cadence, it wasn't for so long either.

YMMV though. If you have a multi-speed bike, you can experiment by not shifting and find a single gear ratio that works for you for now and then go with something close to that.
I'll second heading to the fixed/single speed forum, but gear ratio will depend a lot on your legs and we can't help there.
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Old 09-12-18, 09:08 AM
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In FL I loved the 48/16, well except for the 30 mile straight shot into a head wind.

In Central Ohio I went 48/17, I tried 46/16 and hated it.

I am now 50t (oval) x 17 and it's good, my 20 mile loop that I typically ride is +/- 700'
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Old 09-12-18, 10:24 AM
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Currently, I'm running 44x17, both freewheel and fixed, with a road setup (700x25 tires, front/rear brakes.) I ride flats and hills that average 6% with excursions to 10-11%.

When I lived in flatter areas, I ran 46x16 or 48x16.
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