1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Rear Wheel Sprocket Changed and other ideas

Discussion in 'Norton Motorcycles (Modern)' started by TonyA, Jun 3, 2017.

  1. TonyA

    TonyA VIP MEMBER

    Joined:
    Jan 16, 2015
    In this series of photos I am hoping to illustrate an idea I had and to show some worthwhile improvements.

    [​IMG]

    Here is the original rear wheel buffer and I am compressing it with a small amount of finger pressure (very soft and pliable)

    [​IMG]

    Here is the new rear wheel buffer using the same amount of finger pressure (harder and less pliable) - Hopefully good enough to last a whole 20,000 miles we'll see...
    I am not going to bother and post the damage as it has been documented already on this forum . BUT , the damage can easily be peened with a round flat punch and that's what I did . No need for a whole rear wheel hub.
    This happened after only 4000 miles. So , If you have the aluminum rims with the Talon Hubs watch out for this.

    [​IMG]

    Here I want to show I have successfully sourced the TALON rear sprockets in a different size 47 T . The Gold color is just a bonus and matches the shocks and forks now ! Also please notice the smaller diameter which leads to my next improvement.
    Stock gearing = 18/50 = 2.77 to 1
    19/50 = 2.63 to 1
    17/50 = 2.94 to 1
    The 17 T and 19 T front sprockets are available from CNW and thanks to John G81Can Cycle and Richard-7 and Mr Coote.
    My gearing for now will be 18/47 = 2.61 to 1 just a little higher than the 19/50 tested by Richard-7
    I can go to : 17/47 which will bring me back to almost exactly stock 2.76 to 1 , IF I NEED to or want to.

    [​IMG]
    Another shot of how much smaller the 47T sprocket is than the Factory 50T ..

    [​IMG]
    [​IMG]

    The chain clearance gap is 3 times larger than it was as a final bonus . This will help stop chain to muffler scraping.
    As a final note any sprockets larger than 47T will require a special order because TALON do not stock these on the shelf. So be prepared to wait for 48T or larger. I have a 48T on order. In my view , if you want larger than 48T you may as well just go to stock because you won't be changing much .
     
  2. Britfan60

    Britfan60 VIP MEMBER

    Joined:
    Jan 5, 2014
    Thanks Tony. I'm going to get a new chain and sprocket myself. My sprocket teeth are worn down like an eagle's talon. (no pun intended) 8K on the dial. Guess I'm riding a bit hard but I get the synchros pretty well meshed when down shifting. Soft metal. As for the cush grommets.....are the new really better or are the old just that beat up? The rubber is quite thinner and heat stressed. Good stuff. Keep posting. Meanwhile, my bike will be delayed in repairs due to the service manager failing to hit "send" on the order to Callum Doyle. sigh. REALLY?? Don't matter much. I won't be walking for a while anyway, let alone riding. :roll:
     
  3. TonyA

    TonyA VIP MEMBER

    Joined:
    Jan 16, 2015
    Hi Britfan , Yes the NEW updated rear cush rubbers do indeed seem of harder durometer. This is what Norton needed to do of course. The originals were too pliable . Well time will tell of course and I think Raphi and others are running the upgraded versions with good results so far. What do you think of the gearing changes and the increased chain clearance ? My original rear sprocket is still serviceable . I did not need to change it for wear. Do you lube every 300 miles ? I lube after every riding day. I could see virtually no wear after 4000 miles .
     
  4. BPHORSEGUY

    BPHORSEGUY

    Joined:
    Nov 29, 2013
    So where did you"source" the Talon sprockets?
     
  5. TonyA

    TonyA VIP MEMBER

    Joined:
    Jan 16, 2015
    Harwood Performance Source Ltd. UK
     
  6. Britfan60

    Britfan60 VIP MEMBER

    Joined:
    Jan 5, 2014
    I changed the cush drive rubbers on mine when I got the tires. The do seem firmer. As for the chain clearance, I never had a clearance issue with my SBN pipes. The chain side pipe was mounted about a 1/2 inch lower. I'm getting the Motad shorties now and I hope I don't run into that problem. As for gear changes, if that's what you like. I'm happy with the performance out of the factory. Love the gold anodized sprocket though. I lube the chain and about every two weeks, whatever the mileage would be. I would say about 300 miles or less. I use the wax type. I think I'm going to go more oil with the new sprocket.
     
  7. TonyA

    TonyA VIP MEMBER

    Joined:
    Jan 16, 2015
    Hello again , Just got back from my riding the 961 with the new gearing 18/47 . And the gearing change is mildly noticeable . With the engine torque it is no issue at all. Taking off from a stop is a snap . I used my phone app YORI Moto and checked the speedo error and none found. In fact what has happened is my speedo is more accurate with this new gearing. With stock gearing I was reading about 2 to 3 MPH high . So speedo read 70 actually going 67-68. Now speedo reads 70 going 70 mph. I checked all the way to 85 mph. So from 50 to 85MPH spot on ! Today too much traffic to go much faster. Also , as you guys know its not really smooth until 80 mph . So going 80 mph is a dream now. So the 47T is worth a look at. Also for those wondering I put the iphone in the map pocket of my tank bag to read the phone.
     
  8. contours

    contours VIP MEMBER

    Joined:
    Jan 1, 2012
    Great info, Tony! :idea:
     
  9. richard-7

    richard-7

    Joined:
    Feb 24, 2014
    Thanks for sharing Tony
     
  10. TonyA

    TonyA VIP MEMBER

    Joined:
    Jan 16, 2015
    [​IMG]

    Installed with New Revised Cush Drive Rubbers
    [​IMG]
    Its time for a new front tire . I replaced the rear tire when I did the rear sprocket and cush rubbers . I put on a Bridgestone BT023 sport touring. Then I had a good look at the front and its cupping . Guess what , This is the of this thread.
     
  11. GKRyder

    GKRyder VIP MEMBER

    Joined:
    Mar 20, 2016
    I like the look of the workspace.
    Reminds me of a David Bowie song - Modern Love.

    "I know when to go out, I know when to stay in..
    get things done."

    Tony is getting things done today.
     
  12. Panetone

    Panetone

    Joined:
    Nov 1, 2015
    Hello together,

    different sprockets in black and in gold are also available in Europe at Thiel-Motorsport.
    Ollie has also toped cush drive rubbers in stock.


    So normally the problem is fixed.

    Cheers
    Panetone
     
  13. redaussie961

    redaussie961

    Joined:
    Jan 16, 2017
    Hi All,
    Cannot got get any pictures up....stupidly slow internet I suspect. I have 2016 sport in Australia.
    I am in desperate need of replacement sprockets. 10000kms and now have lethal weapon of a rear sprocket. can anyone tell me if these sprockets fit anything else ? would really like to buy a supersprox style sprocket to get extra life ( yes I ride on dirt roads necessity sadly)
    exact part no. for 47 tooth rear would be very useful please TonyA
    Regards to all Steve
     
  14. TonyA

    TonyA VIP MEMBER

    Joined:
    Jan 16, 2015
    I can find the part numbers and post them . But the front sprocket is Norton 18T from a Norton dealer. The rear is a Talon that fits BST wheel also. So BST and Talon spoked Hub is the same. So any Talon sprocket dealer will be able to order. IMG_1382.JPG IMG_1383.JPG
     
    pingu-nz and contours like this.
  15. TonyA

    TonyA VIP MEMBER

    Joined:
    Jan 16, 2015
    Harwood Performance Source LTD. UK
    stock code = 48163
    description = Talon BST Type 2 47t/525 pitch Gold Rear Sprocket
     
  16. Britfan60

    Britfan60 VIP MEMBER

    Joined:
    Jan 5, 2014
    Your's still looked pretty good compared to mine. My teeth looked like talons. I just stayed with the 50 tooth. Since the dealership had my bike for so long, the did the front and rear sprocket with chain for free. I accept their apology. :D
     
    contours likes this.
  17. redaussie961

    redaussie961

    Joined:
    Jan 16, 2017
    Thank you all.
    I have sent all the relevant info to Superspox and am keeping my fingers crossed ( if I get lucky I will update you all)
    Have been in touch with JTR Brisbane ( talon importers) with talon info (thankyou TonyA) however they seem to be very busy and I am a low priority.
    Steve.
     
  18. pingu-nz

    pingu-nz

    Joined:
    Jun 24, 2011
    Harwood Performance Source LTD. UK
    stock code = 48163
    description = Talon BST Type 2 47t/525 pitch Gold Rear Sprocket
    Arrived today $90 aud ,7 days delivery

    running with a 17 tooth front
    should give me plenty of chain and muffler clearance :D
    [​IMG]
     
  19. Kiwi961

    Kiwi961

    Joined:
    Nov 22, 2016
    Putting a 19 tooth on tomorrow :)
     
  20. pingu-nz

    pingu-nz

    Joined:
    Jun 24, 2011
    Sweet
    Grab Richards manual off the Cnw Norton site for front sprocket removal ,all the instructions you will ever need.
    Cheers
    Paul
     
    richard-7 likes this.

Share This Page