|Big ring options||PEDDLEFOOT|
Dec 3, 2003 8:56 AM
|I'm thinking of reducing the size of the big ring on one of my bikes.Currently it is a 53 on a 105 double.Are there any rings available around 50 ? Where could I get one?Any advice or reccomendations would be appreciated.|
|re: Big ring options||jtolleson|
Dec 3, 2003 9:17 AM
|There are indeed such options, but what exactly are you looking to change? Is it something you can do by just switching casettes (say, to 13-25 or so)? Then you don't lose your top end for downhills, flats with tailwinds, etc.
Also, what is your small (or middle, if it is a triple) ring?
|re: Big ring options||PEDDLEFOOT|
Dec 3, 2003 9:27 AM
|The small ring is a 39.I was thinking going to a smaller big ring would help me stay in the center of the rear cassette (13x26).I don't usually go into the big ring often since I like to spin at a higher cadence.I'm also not a powerful rider so the leg strenghth is not there to really mash at higher gears.|
|38/50 on my touring bike - Salsa rings||PmbH|
Dec 3, 2003 9:40 AM
|I run 38/50 Salsa rings on my touring bike. They shift great and aren't too expensive. I run this with an 11-34 cassette to give me all the gears I want with no triple.|
|re: Big ring options||MShaw|
Dec 3, 2003 9:59 AM
|surf on over to www.fixedgearfever.com and check out a gear inch or gear progression chart.
The only thing dropping 3 teeth in the front's going to do is make the big ring feel one cog bigger (physical size). A 53/13 is going to feel about the same as a 50/12, etc.
If you're really concerned, try a 48t big ring. Lots of cross rings come 3/48.
A ratio to remember: 1 tooth in the back is worth 3 in the front.
Changing out the cassette to get what you want is going to have more of an effect than changing chainrings.
|Multiple cassettes for multiple purposes||pitt83|
Dec 3, 2003 10:07 AM
|I run off season with either an 11-25 or 12-27. Mid season, it's the 11-23. I also have a triple which I only swap the granny 30t for a 24 for the Mt. Washington hillclimb. Buying multiple cassettes for how and where you're riding is about the easiest way to vary gearing.
If you want to swap the ring, cambriabike.com has lots of ring choices.
Also, what's the facination with the big ring? (Not just you: Many folks feel you're not working unless the chain's on the big ring) If you're spinning an honest cadence and pacing where you want to be using the 39t small ring; great!
Dec 3, 2003 11:33 AM
|I learned that a 53 tooth big ring on my bikes simply amounted to several gear combinations that I never used. So both my road bikes have a 50 tooth big ring, and a 36 or 39 small ring. With 13-26 and 13-29 cogsets, I have the gear combinations I actually need and use for my strength and riding area. I've purchased 50 tooth rings from Performance, Loose Screws, internet classifieds, and a bike shop. There are many sources.
53 tooth rings might be standard, but they're overkill for average to intermediate riders. I can spin my 50 X 13 up to 28 mph, which is much faster than I can sustain. If I'm going 30 mph or faster, it's because I'm coasting downhill.
Dec 3, 2003 11:39 AM
|For a ring replacement I'd take a look at TA Specialties rings at www.peterwhitecycles.com. I like the idea of the 13-26 cassette. I don't like the idea of running a mountain bike cassette on a road bike because the ratio jumps are too big, but it may make sense on special mountain races or events.|
Dec 3, 2003 2:15 PM
|.....TA rings (Aliza) are beauties. I just got a set of 50/39.|
|re: Big ring options||Wiaruz|
Dec 3, 2003 4:22 PM
|I agree that the 53 ring is overkill for non racers. When I used to race years ago the common set up was 52/42 with a 13 being the smallest available at the back. In those days campag didn't offer a 39 ring. 52x13 is a 108 inch gear! I am looking at a 48x34 set up with a 13-26 cassette for a new bike. This lets you still use a short cage rear campag mech as the wrap is still only 27. Gives a nice gear range and not too many overlaps.|| |