Welcome to NESR! Most features of this site require registration, including replying to threads, sending private messages, starting new threads, and uploading files. Click here to register.

Results 1 to 11 of 11

Chain question

  1. #1
    Just Registered FireFly's Avatar
    Join Date
    Jun 2005
    Location
    Boston
    Posts
    695

    Chain question

    What are the advantages/disadvantages of changing from a 520 to a 525? I never really understood this... IS this just a way to compensate for changing sprocket sizes?? Thanks

    0 Not allowed! Not allowed!

  2. #2
    Super Moderator OreoGaborio's Avatar
    Join Date
    May 2004
    Location
    MA
    Age
    44
    Posts
    38,852

    Chain question

    FROM 520 TO 525?

    chain/sprocket longevity.

    The chain width matches the sprocket width... A 520 chain and the sprockets that go w/ it are narrower & therefore in theory weaker than a 525 if they're constructed the same way w/ the same materials.

    the disadvantage is, you have more rotating mass w/ a 525 than a 520 so if a soccer mom comes flying up behind you & can't slow down you'll accelerate out of the way & live if you have a 520, where as you'd die in a blaze of glory w/ soiled underwear and piranas eating the flesh off your bones in a fourth world country filled with terrorists if you have a 525.

    GOD HELP YOU IF YOU HAVE A 525 I SAY!!!!

    0 Not allowed! Not allowed!
    -Pete LRRS/CCS #81 - ECK Racing, TonysTrackDays
    GMD Computrack Boston | Pine Motorparts/PBE Specialists | Phoenix Graphics | Woodcraft | MTag-Pirelli | OnTrack Media

    The Garage: '03 Tuono | '06 SV650

  3. #3
    Just Registered FireFly's Avatar
    Join Date
    Jun 2005
    Location
    Boston
    Posts
    695

    Aaaaaa naaa

    SH#t...... I got the 525.. ......heheheh but its all good.

    0 Not allowed! Not allowed!

  4. #4
    Super Moderator OreoGaborio's Avatar
    Join Date
    May 2004
    Location
    MA
    Age
    44
    Posts
    38,852

    Re: Aaaaaa naaa

    Originally posted by FireFly
    SH#t...... I got the 525.. ......heheheh but its all good.
    so do I

    0 Not allowed! Not allowed!
    -Pete LRRS/CCS #81 - ECK Racing, TonysTrackDays
    GMD Computrack Boston | Pine Motorparts/PBE Specialists | Phoenix Graphics | Woodcraft | MTag-Pirelli | OnTrack Media

    The Garage: '03 Tuono | '06 SV650

  5. #5
    Lifer a13x's Avatar
    Join Date
    May 2005
    Location
    Warner Springs, CA
    Posts
    6,583

    Chain question

    Racers started running 520 chains because they are the lighter than 525, or 530, etc. They are lighter because they are narrower therefore have less materials, therefore less mass. Same with the 520 sprockets, they are skinner and weigh less.

    When racing, this is a 'good thing' to run the lightest parts possible.

    520 chains became fashionable on streetbikes as a 'upgrade' because well, what racers run is what street riders want to run. (be it cars, motorcycles, bicycles, you name it).

    The downside to 520 is that generally the chain and sprockets don't last as long as their larger counterparts. This is because less materials also tend to make things weaker, along with lighter. So you have to replace them more often is the rule of thumb.

    Generally you see chain widths dictated by the HP a bike puts out. A uber-lightweight 125GP bike can run a much skinner chain than a 1000cc superbike with 210 HP.

    There is really no major advantage to running a 520 chain on the street other than you get to say 'I did the 520 chain conversion' when sitting around and bench racing.

    520 chain with lightweight aluminum sprockets tends to save 2lbs over OEM 530 setup FYI.

    0 Not allowed! Not allowed!
    Boston --> San Diego

  6. #6
    Member Onedwn5up's Avatar
    Join Date
    Jan 2006
    Location
    North Jersey
    Age
    46
    Posts
    58

    Chain question

    its a weight advantage as alex described. Also less rotating mass. 2lbs lighter in the drivetrain equals faster acceleration/engine spin up.

    I however, never bothered. I kept the 525 chain and just swapped sprockets. A whole season later my chain is still tight as can be and everyone that I know that runs a 520 has it stretched like a slinky.

    For the most part though, 520 replacement sprockets are easier to come by last moment at the track. But Street & Comp carries everything while at NHIS.

    0 Not allowed! Not allowed!
    Team ProMotion Coach & NE/Mid-Atlantic CCS/LRRS #973
    www.myspace.com/roadracerx
    2006 NE CCS/LRRS Amateur Champion
    Middleweight SuperSport, Middleweight Superbike, Middleweight Grand Prix, Heavyweight SuperSport, Heavyweight Superbike, Unlimited SuperSport, Unlimited Superbike
    www.teamsampsonracing.com
    www.northeastsmartstart.com

  7. #7
    KB KB's Avatar
    Join Date
    Jun 2002
    Location
    Manchester NH
    Age
    52
    Posts
    8,171

    Chain question

    Stick with whatever came stock on your bike.

    Assssskk the fools that own Rc51's what happens when you put a 520 kit on your bike and it's a torque monster?

    Can you say goodbye to your rear sprocket!!!!


    KB

    0 Not allowed! Not allowed!
    LRRS/CCS EX #13

    GMD COMPUTRACK

  8. #8
    IWOK Prez. bigred875's Avatar
    Join Date
    Sep 2003
    Location
    Manvile, RI
    Posts
    8,083

    Chain question

    I however, never bothered. I kept the 525 chain and just swapped sprockets.
    i have thought about...but I beat on my chain and sprockets too much so I am sticking with the stock 525

    However, I dod believe there are some palces putting stronger 520 parts that hold up well...but I'm not sure...

    0 Not allowed! Not allowed!
    Quote Originally Posted by ThisBitch View Post
    From my experience, its the natural red heads (aka gingers) that have no soul--- I mean are crazy.

  9. #9
    Angry Gumball RandyO's Avatar
    Join Date
    Jul 2001
    Location
    Farmington, NH
    Age
    71
    Posts
    17,936

    Chain question

    the side plates of 520 chains are identical to those on 525 and 530 chains, theo only difference is the width, or the length of the pins & rollers between the side plates

    the big weight savings in a 520 conversion is not the chain, it's going from a steel sprocket to an aluminum one

    what wears faster isn't the chain, it's the sprocket teeth, narrow ones aren't as strong as wide ones, aluminum is not as strong as steel

    0 Not allowed! Not allowed!
    RandyO
    IBA#9560
    A man with a gun is a citizen
    A man without a gun is a subject LETS GO BRANDON

  10. #10
    Lifer
    Join Date
    Oct 2001
    Location
    Bedford, MA
    Posts
    5,237

    Chain question

    Is the diameter of the pins smaller as well?

    The way chains "stretch" is the pins wear and get smaller, allowing the links to be pulled further apart. If the pins are smaller the chain will wear faster.

    Wear is the least of my concerns. I had a decently worn chain jump & break on my bicycle last winter at about 30mph down a hill last year. I saved it but it was WAY more excitement then I care to experience again. I didn't even get stranded cause I had a chain tool and just repaired it enough to ride home but it was freaky.

    Do NOT want to ever have that happen on a motorcycle. I'm not even going to push the lifetime of my 530 chain.

    0 Not allowed! Not allowed!

  11. #11
    Super Moderator OreoGaborio's Avatar
    Join Date
    May 2004
    Location
    MA
    Age
    44
    Posts
    38,852

    Chain question

    Ben....
    Originally posted by RandyO
    the only difference is the width, or the length of the pins & rollers between the side plates
    +1... pin diameter is the same

    0 Not allowed! Not allowed!
    -Pete LRRS/CCS #81 - ECK Racing, TonysTrackDays
    GMD Computrack Boston | Pine Motorparts/PBE Specialists | Phoenix Graphics | Woodcraft | MTag-Pirelli | OnTrack Media

    The Garage: '03 Tuono | '06 SV650

Similar Threads

  1. Another Chain Help Question
    By idratherberidin in forum Bike Maintenance
    Replies: 11
    Last Post: 06-12-08, 12:50 PM
  2. Chain Question
    By highsider in forum General Bike Related
    Replies: 12
    Last Post: 04-02-07, 12:39 PM
  3. Chain Question
    By highsider in forum General Bike Related
    Replies: 11
    Last Post: 08-01-06, 01:02 PM
  4. CHAIN QUESTION??
    By JJ in forum General Bike Related
    Replies: 2
    Last Post: 07-24-03, 04:51 PM
  5. chain question
    By oreo_n2 in forum Bike Maintenance
    Replies: 7
    Last Post: 04-10-03, 06:02 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •