Chainset/cassette upgrade advice please

stayhigh65
stayhigh65 Posts: 611
edited September 2007 in MTB buying advice
Morning All

Hope everyone is cool and groovy :)

Payday has swung my way again and its time to upgrade my ride, good old nhs overtime ;) I need to replace worn crank and rear cassette so thought I might as well do the chain as I'm at it.

For the crank I've been looking at either the Truvativ Firex Team or the Stylo 3.3. Both of them come with GXP bottom bracket and are in my price range, sub £70.

Merlin Cylces are currently doing a deal on Sram cassettes and chains with a PG980/PC971 for £32.50 or PG990/PC991 for £49.95 which is great value.

Ive also been looking at new shifters as mine are old and bashed and the new 08 xt shifters look sweet.

So anyway, what are peoples opinions/ideas/advice?

I ride a Rocky Mountain Slayer 50 for trails and XC with a budget of around £150.
Wow great ship man. Looks like a fish, flies like a fish, steers like a cow.

HECKLER
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Comments

  • nicklouse
    nicklouse Posts: 50,673
    LX or XT for the cranks.

    990/991 for the chain cassette


    shifters Mmm upto you.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • stayhigh65
    stayhigh65 Posts: 611
    Thanks for your reply, Ive just been looking at the xt cranks and have found mixed reviews for them which i suppose is to be expected however a lot of them seem to mention the rings wearing very quickly.

    I guess the wear depends on how much you use them, I'm just starting up again after a little lay off. I was riding around 100K a week though am currently doing 50K if this helps at all?
    Wow great ship man. Looks like a fish, flies like a fish, steers like a cow.

    HECKLER
    exercise.png
  • nicklouse
    nicklouse Posts: 50,673
    the shimano set up is superior to the others. in fitting and bearings.

    rings can be replaced. with harder ones from anyone else.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • stayhigh65
    stayhigh65 Posts: 611
    With future proofing in mind what rings would you suggest or would I be better off stretching my budget?
    Wow great ship man. Looks like a fish, flies like a fish, steers like a cow.

    HECKLER
    exercise.png
  • Splasher
    Splasher Posts: 1,528
    XT inner, XT outer, Deore middle.
    "Internet Forums - an amazing world where outright falsehoods become cyber-facts with a few witty key taps and a carefully placed emoticon."
  • jayson
    jayson Posts: 4,606
    Splasher wrote:
    XT inner, XT outer, Deore middle.

    Yep agree entirely, infact that is my setup u described :D
    Remedy

    Merida

    Austria 2012
  • stayhigh65
    stayhigh65 Posts: 611
    Hmmm buying a crank and then having to spend out to replace rings that wear out quickly sounds like it could get rather expensive as rings are around £25 each.

    Would building a custom crank, i.e. BB, rings, arms be a better bet or prehaps another crank that will have better durability?
    Wow great ship man. Looks like a fish, flies like a fish, steers like a cow.

    HECKLER
    exercise.png
  • nicklouse
    nicklouse Posts: 50,673
    how many miles do you do?

    everything wears out. buy the XT and if and when something wears out relace them.

    a custom build will cost more.

    the best bb set up is shimano. so you will be buying shimano cranks but they only come with rings........ see the problem
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • Splasher
    Splasher Posts: 1,528
    When I said XT inner and outer, I meant your originals as they will last OK. The middle is the one that wears fastest and you simply replace that with an £8 Deore one which lasts years because it's steel.
    "Internet Forums - an amazing world where outright falsehoods become cyber-facts with a few witty key taps and a carefully placed emoticon."
  • stayhigh65
    stayhigh65 Posts: 611
    Ah I see that would make more sense. I've been looking at the xt & lx and have to say that on the reviews am looking more at the lx as the weight saving for the xt isn't as much of a concern for me as the difference in cost.

    I've not replaced a BB before, when it gives the option of 170 or 175mm what does that refer to exactly?
    Wow great ship man. Looks like a fish, flies like a fish, steers like a cow.

    HECKLER
    exercise.png
  • supersonic
    supersonic Posts: 82,708
    That is crank length.
    GT ZASKAR CARBON TEAM

    VOODOO CANZO

    Come and see me at https://www.facebook.com/biketyke/
  • stayhigh65
    stayhigh65 Posts: 611
    OK that's cool. Now for my next question, on the Rocky Mountain site it lists the BB as ISIS. Does that mean i have to replace it with an ISIS BB or is that just the one that came with the bike? The Evolve crankset that came with the bike was replaced by the original owner to a Hone so I don't know whether it has the original BB or not.
    Wow great ship man. Looks like a fish, flies like a fish, steers like a cow.

    HECKLER
    exercise.png
  • supersonic
    supersonic Posts: 82,708
    The bottom bracket has to match the crank ie ISIS, octalink etc. Some newr cranks have integrated axles and external cups that come as a package.
    GT ZASKAR CARBON TEAM

    VOODOO CANZO

    Come and see me at https://www.facebook.com/biketyke/
  • stayhigh65
    stayhigh65 Posts: 611
    Excellent my work here is done now let the shopping frenzy begin :)

    Cheers for all your help and advice peoples.
    Wow great ship man. Looks like a fish, flies like a fish, steers like a cow.

    HECKLER
    exercise.png

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