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Urgent Derailleur HELP !!!!

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Urgent Derailleur HELP !!!!

Old 10-07-11, 08:00 PM
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leovacc
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Urgent Derailleur HELP !!!!

I own a GT agressor. It has a shimano 7SIS rear derailleur, but everything is starting to fall apart.
I like to change both front, rear and shifters. What can i use?
I have seen the Shimano Altus, but since i am absolutely new in this i dont know if it will work.
Please give me some directions i whar do i need. Thanks so much.!!!
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Old 10-07-11, 09:24 PM
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mechBgon
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Do you want a shifter/brake lever combo, or just shifters without brake levers?
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Old 10-07-11, 09:38 PM
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Jeff Wills
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Originally Posted by leovacc View Post
I own a GT agressor. It has a shimano 7SIS rear derailleur, but everything is starting to fall apart.
I like to change both front, rear and shifters. What can i use?
I have seen the Shimano Altus, but since i am absolutely new in this i dont know if it will work.
Please give me some directions i whar do i need. Thanks so much.!!!
Shimano Altus will work. Shimano derailleurs are 99% cross-compatible, the exceptions being some oddball stuff at the top end of the cost spectrum. In fact, several other manufacturers (Sunrace, newer Suntour) are also compatible with Shimano shifters and derailleurs, so you're not locked into just Shimano parts.

One caveat: for the shifting to work correctly, the number of indexes on the shift lever needs to match the number of cogs on the rear wheel. Since you probably have a 7-cog cluster, you need "7-speed" shift levers.
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Old 10-08-11, 04:16 AM
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Myosmith
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For a couple extra $ you can get Shimano Alivio derailleurs and shifters which, for lower end components, I've been impressed with for both performance and durability.
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Old 10-10-11, 07:40 AM
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leovacc
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I like a combo brake. Shifter



Originally Posted by leovacc View Post
I own a GT agressor. It has a shimano 7SIS rear derailleur, but everything is starting to fall apart.
I like to change both front, rear and shifters. What can i use?
I have seen the Shimano Altus, but since i am absolutely new in this i dont know if it will work.
Please give me some directions i whar do i need. Thanks so much.!!!
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Old 10-10-11, 07:56 AM
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leovacc
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Thank you all for your help. Besides alivio, is there any model number like alivio 7 or something like that.
Any alivio front deraillure will work ok?
Originally Posted by Myosmith View Post
For a couple extra $ you can get Shimano Alivio derailleurs and shifters which, for lower end components, I've been impressed with for both performance and durability.
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Old 10-10-11, 11:13 AM
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mechBgon
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Originally Posted by leovacc View Post
I like a combo brake. Shifter
Ok, the reason I asked is that there are two different types of brakes. V-brakes and old-school cantilevers. It's important to have levers that move the right amount of cable for the brakes you have. Shimano does have some levers with a movable fulcrum point so you can convert them. Here's one:

http://compare.ebay.com/like/3005996...=sbar&_lwgsi=y
or the bike shop can get J&B part #53851 for you.

Note that you need to get the 4-finger style of brake lever if you want the conversion option; two-finger variants are dedicated to either V-brake or old-school cantilever and don't have the converter option. The retail-packaged sets come with cables and housings included.

If you'd prefer 2-finger, that's fine too, just make sure whether you have V-brakes or regular cantis and order the version that fits. Post if you need help determining which.
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