Bicycle Mechanics - Cassette Replacement

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jkempler
07-31-04, 01:43 AM
I am currently doing some serious bike riding on weekends involving steep hills. I have an 11 year old Giant Aluminium frame bike (Cadex ALR-1). The componentry is Shimano 105. The cluster is I think a 13-23 which is next to useless on hills.

As the bike is an 8 speed, I was told better stick to an 8 speed rather than a 9 speed as I may have problems adjusting derailleur etc (I assume this is correct)

Anyway, I am considering installing a Shimano 105 Deore LX (CS-HG70) with 11-30 cogs. But somebody told me having the cogs sizes that far apart will make the gear changes "clunky". Is that true?

Also, if I have not changed a cluster previously, is it something I can do without experience? If so, what tool doI need?

Raiyn
07-31-04, 01:51 AM
http://www.bikeforums.net/showthread.php?t=49766
steveknight
07-31-04, 02:57 AM
I am currently doing some serious bike riding on weekends involving steep hills. I have an 11 year old Giant Aluminium frame bike (Cadex ALR-1). The componentry is Shimano 105. The cluster is I think a 13-23 which is next to useless on hills.

As the bike is an 8 speed, I was told better stick to an 8 speed rather than a 9 speed as I may have problems adjusting derailleur etc (I assume this is correct)

Anyway, I am considering installing a Shimano 105 Deore LX (CS-HG70) with 11-30 cogs. But somebody told me having the cogs sizes that far apart will make the gear changes "clunky". Is that true?

Also, if I have not changed a cluster previously, is it something I can do without experience? If so, what tool doI need?

I went from 12-23 to 12-28. the last two cogs are a little clunky but not a big deal.

blue steal
07-31-04, 09:03 AM
I use a Shimano 13-30 and this works well for the steep hills. Changing the casette will require a chain whip, and a lock ring tool and a wrench to fit it. It is pretty easy, but the cost of the tools exceeds the price a bike shop will charge to do it. I think they charged me about 6-7 dollars. As to the clunky shifting, only when moving up the 30 tooth, but I rarely use this one.