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cassette and chain ring choices....

Old 06-21-09, 08:47 AM
  #1  
idodweck
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cassette and chain ring choices....

hi,

i changed my hg50 cassette on my scott sub 10 to cs6500 and it seems to be less fluid than before. I figured out that it will be a good time to review everything...
I go hard and fast in the city and do some touring (all on the bike) as well. so far i had 26/36/48 and 11-32 and i used almost only the 4 small cogs with the big chain ring. the new cassette is 11-21 and there's not much of a difference beside the lack of smoothness when changing gears. I thought going up in front - 30/42/50 and i for the cassette i hesitate between 11-28 (shimano slx) and 11-32 (shimano xt).
basically i'm looking for speed without compromising the ability to go uphill easily and a more usable combination - having more of the cogs in use. it's quite clear - the small 3 cogs were smashed and the other ones like new....

does it make any sense for those of you who unlike me know something about it?
which of the cassettes is better?


thanks///////
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Old 06-21-09, 08:55 AM
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Wanderer
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Stick with the 11-32 if you want ease up the hills. Going to 50-40-30, or thereabouts, will probably push you a tad more toward the middle when pedalling normally, and increase you speed when necessary. At the same time, you probably won't notice much difference in the 26-30 small ring. What size wheels/tires are you running?
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Old 06-21-09, 09:21 AM
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idodweck
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thanks,
i'm with 26" and 1.3 tires (maybe 1.35 - it's the schwalbe marathon plus)
i tried the different combinations with the sheldon's geat calc but i don't have enough knowledge to figure out if the cadences will be smooth or not...
for the small ring - never realy used it. i thought about changing it as well in order to have less difference between with the middle one/
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Old 06-21-09, 09:28 AM
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and..
is xt "better" than the slx? they are about the same price and both have 11-32// (11-28 - only slx)
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Old 06-21-09, 09:29 AM
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If you never use the small ring, consider 52-42-32 - that will move your chain on your cassette. It will raise effort and spread differences more, and the middle ring will bring them closer together. And the small ring will still let you ride up a wall. Also, if you like to go faster, consider a 29er. That 700C is a big improvement on the street.

edit: Have you checked Shimano's website for the differences between the two cassettes?
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Old 06-21-09, 01:37 PM
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Originally Posted by Wanderer View Post
edit: Have you checked Shimano's website for the differences between the two cassettes?
I did, couldn't find any beside the finish. there aren't any detailed photos to compare the "design".

I guess I'll to find the chain rings size you mentioned. I thought about specialities-ta but can't seem to find a 52 to match my cranck as it's a mtb 104mm and not a road one...


as for a the 26" - i'll try it in the future - don't have any disc 700c rolling around :-)


thanks
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Old 06-22-09, 02:09 AM
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Originally Posted by idodweck View Post
I did, couldn't find any beside the finish. there aren't any detailed photos to compare the "design".
Check the Tech Docs area under Tech Support for exploded views.

XT is a step up from SLX. The XT cassette should cost a lot more than SLX.
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Old 06-22-09, 02:23 AM
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I'm kind of new in bicycling and have been looking all over for the Shimano hierarchy.

This site has helped me a lot. Hope this helps.

https://bike.shimano.com/

Last edited by Igoslo; 06-22-09 at 02:37 AM.
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Old 06-22-09, 02:44 AM
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slx: between 37€ and 39€
https://www.starbike.com/php/product_...g=fr&pid=10576
XT: 42.5€
https://www.starbike.com/php/product_...ng=fr&pid=9382

tech doc's don't shoz for ex if there are two HG "guides" on each cog (at least from the 14t and up). on the 6500 there aren't but on the hg50 there are... small difference that can, as far as i figured out, effect the smoothness of the gearing.

can't find 104mm 4 axes, with more than 50t. anyone ever seen it?
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Old 06-22-09, 02:59 PM
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Originally Posted by idodweck View Post
Oh, that's the "other" SLX cassette. When Shimano first rolled out the SLX group, I guess they didn't have an SLX specific cassette ready. This HG80 cassette originally was listed with the Saint group.

There's now a cheaper cassette also packaged with the SLX name: HG61. It looks to be very similar in construction as the Deore LX M580 cassettes.
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