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Need Help With GMC Denali Tools

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Need Help With GMC Denali Tools

Old 05-02-12, 01:45 PM
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Need Help With GMC Denali Tools

I ride a GMC Denali for commuting to work, something I can leave outside in the rain and not really care too much about because it's cheap. I would like to be able to do some maintenance on it from time to time though and keep it riding smooth. Lately I've been having some bottom bracket and wheel hub issues and would like to be able to replace them if needed and just keep them properly greased in general.

I don't know what kind of bottom bracket it is or what specific tool I'd need for it, same for the crank and hubs. If anyone knows what specific tools I would need to work on these I would really appreciate it. If you have links even better. Tried LBS, they weren't much help, they said they were out of half the tools which were of course heavily overpriced and just kept pushing to sell me a new bike (Not leaving a good bike in the rain while I work, they didn't seem to get it). My bike is just a standard GMC Denali (yellow & black) current model, any help would really mean a lot to me.
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Old 05-02-12, 02:19 PM
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BB will require a crank puller and a BB tool for your type of BB (assuming it is a standard catridge BB, pic would help). Hubs are most likely cup and cone. You'll need a set of cone wrenches and something to get the freewheel/cassette off. As it is 21 speed, I'm guessing freewheel but you'll need to id that (pics would help). You should also have spoke wrenches to true the wheels. About the only other thing would be cleaning and lubing the chain. Lots of ways to do this so how you decide to do it will determine which tools you'll need (or if you need any at all).
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Old 05-04-12, 12:29 AM
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Is the freewheel a sunway? If so, it will use the park tool fr-1
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Old 05-04-12, 03:15 AM
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Speaking as someone who is not at the LBS you visited trying to sell you a one of their bikes; my advice is: buy a new bike. Maybe even another GMC Denali if you need it as a beater.

What doesn't make sense to me is, you want to keep a cheap bike because you leave it out in the rain and don't want to have to care about it; yet you also want to service the bottom bracket and hubs. These are two contradictary goals.
A cheap bike is not worth servicing; paying an LBS to do it will cost more than the bike is worth. Buying the tools and doing it yourself will cost more in tools than the bike is worth. (btw, you sure the tools were overpriced? 25$ for a bb tool is normal.)
This is only worth doing if you consider it an investment in learning to work on other bikes in the future-not for the GMC itself.
Anyhow, if thats what you want Park Tools has very useful online guides.

here for servicing the current bottom bracket:
it will likely be toast, so look here next for replacing it with a modern one:

for the rear hub, start here for getting the freewheel(gear cluster) removed:
then here next for adjusting the hub itself:

note that each guide also lists the tools needed; read through in detail and make sure its clear before buying tools though. Also keep in mind the possibility that new parts may be needed if things are worn down.
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Old 05-04-12, 05:59 AM
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I'd start with something like the Nashbar Essential tool kit. --> http://www.nashbar.com/bikes/Product...52_-1___202376

Thats where I started, and it worked pretty well. Whenever something broke, I bought the equivalent Park Tool. It might not have everything you need, but you could fill in the rest.
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