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  1. #1
    timbentdude
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    9speed cassette on 7speed hub

    I scored a deal on a 99 Trek 520. The LX hub looks like it has about 3 mm of space on the inner side of the cassette carrier. I have a complete 9 speed system lying around will the 9 speed XT cassette work.

    Thanks
    Tim

  2. #2
    Senior Member juicemouse's Avatar
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    Only one way to find out...
    It is my belief that every person in this world has something to teach, and everything to learn.

    In memory of Jim Price (aka. sydney) ...

  3. #3
    Senior Member sydney's Avatar
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    The '99 520 was listed as being 8 speed, so the 9 speed casset will fit the hub body.

  4. #4
    timbentdude
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    Thanks Sydney, I better count the cogs I was taking the sellers word on the that. Will the RX100 crankset 110mm BCD handle 9 speed pc89r chain, or do I have to change out the rings.

    Thanks
    Tim

  5. #5
    Senior Member sydney's Avatar
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    I never heard of a rx100 110BCD crank. But even if there was one there would be no problem with that chain.

  6. #6
    timbentdude
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    I better check things alittle closer.
    Thanks again

  7. #7
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    I never heard of a 110 BCD RX-100 either. I wonder if it's an RSX.

  8. #8
    Senior Member sydney's Avatar
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    a '99 520 had a 105 triple on it, but who knows.?

  9. #9
    Year-round cyclist
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    As far as I know, the 1999 is similar to the 2000 Trek 520 I have. It came with 8-speed 11-30 cassette with a LX derailleur, as well as a "105" crankset with 52-42-30 (or 52-40-30?). The company designs it with bar-end shifters, but many dealers put them on the floor with STI, so beware.

    It's quite easy to replace the 8-speed cassette with a 9-speed cassette. The main difference is that cogs are a little closer to eachother (see http://sheldonbrown.com/k7.html), so the overall width is 0,5 or 1 mm more. And it fits... with a small cog of 11, 12 or 13. And the derailleur is indeed able to work with a wider-range cassette such as 11-34.

    However, if you go from 8 to 9, you'll either have to use the bar-end shifters in friction mode or replace the shifters with 9-speed shifters. And if the bike was equipped with 8-speed STI, you'll have to replace the shifters because there is no friction option.
    And of course, you'll need a 9-speed chain. However, front derailleur and chainrings are OK, whether you have 7, 8 or 9 gears in the back.
    Michel Gagnon
    Montréal (Québec, Canada)

  10. #10
    timbentdude
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    I checked the crank again and its an RSX with a 110 BCD not an RX100. The brake levers are RX100. My rear hub is is an LX FH-M563 with a 7 speed cassette, does that part number correspond to an 8 speed hub. Also did the 520 have different component levels, since I'm hearing most 520's had a 105 LX mix. I'm trying to tell if my 520 is original equipment or not.

    Thanks
    Tim

  11. #11
    Senior Member sydney's Avatar
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    Quote Originally Posted by timbentdude
    I checked the crank again and its an RSX with a 110 BCD not an RX100. The brake levers are RX100. My rear hub is is an LX FH-M563 with a 7 speed cassette, does that part number correspond to an 8 speed hub. Also did the 520 have different component levels, since I'm hearing most 520's had a 105 LX mix. I'm trying to tell if my 520 is original equipment or not.

    Thanks
    Tim
    A m563 is an 8 speed hub,and will accept a 9 speed cassette. The RSX crank is not original.People typically change out the lame 105 triple crank to lower gering for 'real' touring.A '99 520 also had V brakes and Diacompe brake levers.

  12. #12
    timbentdude
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    The brakes are center pull type LX v-brakes. The thing I like about this bike is the brakes, rear der., and hubs are the same green color as the frame. One last question will the LX rear der. handle the 11-32 XT 9 speed cassette, or do I need to replace with my 9sp der.

    Thanks you have been most helpful.

    Tim

  13. #13
    Senior Member sydney's Avatar
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    If the LX is the late 90s vitage it handles a 32,and 9speeds. Easy way is just stick it all together and see.

  14. #14
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    Do the V-brakes work ok with RX-100 levers? Sydney said the bike originally came with Dia Compe levers, I assume the road levers specifically set up to work with V-brakes. Most regular road levers don't have the correct cable pull to work properly with V-brakes.

    Like Sydney, I assume the original owner changed the 105 crank (52/42/30) for the RSX (46/36/26) to get lower gearing.

  15. #15
    timbentdude
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    The V-brakes are real crisp, they seem to actuate like normal V-brakes as for as the cable pull is concerned. I've only been around the block a few times, tonight it gets a real shake down. Its been maintained real well, serviced every year and rode about 500 miles a year on average. I couldn't pass it up for $250.

    [QUOTE=HillRider Do the V-brakes work ok with RX-100 levers? Sydney said the bike originally came with Dia Compe levers, I assume the road levers specifically set up to work with V-brakes. Most regular road levers don't have the correct cable pull to work properly with V-brakes. ]

    I should be able to walk faster than the lowest gear combo after I add the 32 9 speed rear.

    [Like Sydney, I assume the original owner changed the 105 crank (52/42/30) for the RSX (46/36/26) to get lower gearing. /QUOTE]

  16. #16
    Back in black cydewaze's Avatar
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    Quote Originally Posted by HillRider
    Do the V-brakes work ok with RX-100 levers? Sydney said the bike originally came with Dia Compe levers, I assume the road levers specifically set up to work with V-brakes. Most regular road levers don't have the correct cable pull to work properly with V-brakes.
    Although the OP said "V-brakes" he probably meant cantilevers. This explains the "center pull" description.

  17. #17
    Senior Member sydney's Avatar
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    The '99 520 did come with V brakes. I tend to discount alot of others terminology.

  18. #18
    timbentdude
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    Quote Originally Posted by sydney
    The '99 520 did come with V brakes. I tend to discount alot of others terminology.

    Thank you sydney for all your help, we will meet again in person and ride together! RIP

    Tim

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