Sprocket Swap

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Thread: Sprocket Swap

  1. #1
    Bike
    BMW F650GS 2001
    Join Date
    Jun 2010
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    Wirral
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    Default Sprocket Swap

    Let the swearing begin

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    Loud Pipes Saves Lives

  2. #2
    Bike
    GS/Gd Dakar 2003
    Join Date
    Oct 2008
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    wakefield
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    Swooping mine 15T to17T was easy, well for me;
    knock back locking tab, undo retaining nut, mine was hand tight ! Slacken off rear wheel adjusters, move wheel back , lift chain off sprocket, keep chain on drive shaft then withdraw sprocket, replace with new sprocket, loop chain on to sprocket, replace locking tab ( new recommended, but felt mine was fine after flattening) tighten retaining nut, bend tab to lock. Adjust chain to recommended tension, mine has plenty enough on adjusters. Do this in 1st gear, lock wheel with rear brake if sprocket moves when removing or tightening. Replace chain / rear sprocket if worn,

    but I am sure you know this
    2003 GS Dakar
    BMW Panniers, top box, tank bag
    + loads TT stuff that came with it!

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  4. #3
    Bike
    BMW F650GS 2001
    Join Date
    Jun 2010
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    Wirral
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    Thanks for your post and advice, I’m doing exactly what you’ve done, I started last night, bike in gear, socket on,bloody big bar at the ready,hardly touched the nut, 😱as loose as🤔, can’t understand why,could you 🤔
    So from 15t to 17t what’s your experience, some say starting off,you have to slip the clutch, what’s it like top end now🤔
    Stay Safe Baza 🤘😎
    Loud Pipes Saves Lives

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  6. #4
    Bike
    GS/Gd Dakar 2003
    Join Date
    Oct 2008
    Location
    wakefield
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    Found didn't have to slip clutch to pull away with 17t any more than with 15t, apart from maybe steep hills, you get used to it.
    top end is more relaxed, max torque feels to be about 3,500-5,000 rpm, don't usually go above 4,500 , doesn't feel over geared to me, mine goes turbine smooth once hit 5k upto 8k, good spread 4,5 to 5k , recall from graph somewhere that's majority torque/ power .
    if you want better overtaking 50-70mph go for 15t, I do lot A roads/ motorway riding so relaxing 17t better for me, it's very subjective , depending on your riding style
    2003 GS Dakar
    BMW Panniers, top box, tank bag
    + loads TT stuff that came with it!

  7. #5
    Bike
    BMW F650GS 2001
    Join Date
    Jun 2010
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    Wirral
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    Cheers mate, got 15t in now, going to a 17t, hopefully a lot more motorway riding, when this virus buggers off
    Last edited by Baza; 06-04-2020 at 05:09 PM.
    Loud Pipes Saves Lives

  8. #6
    Bike
    BMW F650GS 2001
    Join Date
    Jun 2010
    Location
    Wirral
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    Is the Optimoly MP3 essential as I’ve only got Castrol MS3

    All sorted thanks for all you replies,just waiting for a certain
    something to hop it,then its a test run ;-)
    Nwe Sprocket.jpg
    Last edited by Baza; 06-04-2020 at 05:09 PM.
    Loud Pipes Saves Lives

  9. #7
    Join Date
    May 2020
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    Hi I would love to go to a 17/18T on my '04 twin spark BUT cant source a sprocket anywhere! ........ Regards........

  10. #8
    Bike
    BMW F650GS 2001
    Join Date
    Jun 2010
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    Wirral
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    Quote Originally Posted by JayDee1942 View Post
    Hi I would love to go to a 17/18T on my '04 twin spark BUT cant source a sprocket anywhere! ........ Regards........
    Just search ebay,there's loads on there
    Last edited by Baza; 07-05-2020 at 08:02 PM.
    Loud Pipes Saves Lives

  11. #9
    Join Date
    May 2020
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    Your right ref 17T But I need an 18T to go with my 45 rear - Send you a nice present if you can give me a link to order (Not USA) Regards

  12. #10
    Bike
    02 dakar
    Join Date
    Dec 2019
    Location
    Scarborough
    Posts
    44
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    Have you tried B&C express ? They maybe able to help.


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