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Dodgy suspension?

  • 09-11-2008 3:27pm
    #1
    thehomeofDob
    Registered Users, Registered Users 2 Posts: 1,452 ✭✭✭


    Took my little sister out for a spin around the estate the other day. Didn't go out on the main roads, but even a low speed a noticed a sort of grinding noise coming from the back. I thought it was the suspension so I looked on line and put it at a tighter setting, but it hasn't made a difference? Is this something I should be worried about? I don't hear anything when I'm out on my own, and I realise I won't be out with someone on the back till I get my full license but still.

    Could I get the retailer to fix it under warranty?

    Thanks,
    Daniel


Comments

  • #2
    colm_c
    Registered Users, Registered Users 2 Posts: 2,032 ✭✭✭colm_c


    What kind of bike is it? and how much to you and your sister weight?


  • #3
    thehomeofDob
    Registered Users, Registered Users 2 Posts: 1,452 ✭✭✭thehomeofDob


    It's a Suzuki GZ250. We're not overweight. I'm about 65kg's - at a guess, and she's probably the same or slightly heavier. The rear of the bike does drop a huge amount when anyone else gets on the bike. It didn't feel like the back wheel was scraping or rubbing, but there definately was a grinding noise.


  • #4
    colm_c
    Registered Users, Registered Users 2 Posts: 2,032 ✭✭✭colm_c


    It could just be the engine/clutch/gearbox having to work harder to move the two of you, I always need to give it more juice for the same speed when I have someone on the back or a full set of luggage.

    I'd have a check around the back fender, and underneath the bike just to be sure, and check with the dealer and see what he thinks - he should be able to test drive it and reproduce it.


  • #5
    Pigeon Reaper
    Registered Users, Registered Users 2 Posts: 1,294 ✭✭✭Pigeon Reaper


    Check your chain wasn't too tight with the extra weight on the back. If it drops enough at the back it has the effect of tightening the chain.


  • #6
    Bang Bang
    Registered Users, Registered Users 2 Posts: 774 ✭✭✭Bang Bang


    Get a person to help you here. Have yourself and your sister sit on the bike and get the other person to measure the drop of the suspension. It should be around 25mm.
    If it's dropping further than that then chances are your bottoming out the suspension and/or it's grinding against the tyre.
    Check your chain tension at the same time, have the other person meausre the chain slack whilst the two of you are still on the bike.


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  • #7
    Steffano2002
    Registered Users, Registered Users 2 Posts: 5,918 ✭✭✭Steffano2002


    Pigeon Reaper wrote: »
    Check your chain wasn't too tight with the extra weight on the back. If it drops enough at the back it has the effect of tightening the chain.
    That's what my first thought was also...


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