Featured 2019 S3 Rs Latest Mod . . . .

Discussion in 'Speed Triple' started by Alan Gilbert, Mar 22, 2021.

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  1. Alan Gilbert

    Alan Gilbert Well-Known Member

    Nov 22, 2018
    182
    93
    Lincolnshire, UK
    Bike manufacturers all too often go for style over function and a good example is front fenders, which are always way too short.
    For some reason, there's no aftermarket fenda extender to suit the S3 RS. I've looked at the nearest options available and none of them fit accurately since the fender designs for various models and MYs are all subtly different and so . . .I've set about making one myself out of carbon.
    My intitial intention was to simply produce a single unit from wet layups but I've had to fettle, fill and sand the thing so many times that it will be too unsightly to use and instead, I have decided to use it as a plug to make a mould and that way, I can make as many as I wish and also gelcoat with a UV resistant coating in the mould rather than apply a 2K twin pack Urethane clearcoat, with all the mess and health hazards that entails.

    First job was to take a new front tyre and squish down some filler onto the tyre, sandwiched between the underside of the carbon fender and the tyre. This was to give me the radius of the fender, its crude cross-sectional profile and the attachment shape under the rear of the fender.

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    Having done this, I next laid up two layers of BID onto the filler and pushed the fender down onto it to get the attachment point. After curing, I took the crude layups and trimmed roughly to shape before temporarily bonding to the undersurface of the fender.
    IMG_4172.JPG

    Next job was to build up a load of epoxy/micoballoons to make a think filler paste. In hindsight, I shouild have perhaps used something a little easier to sand. I next sanded the filler to give the required profile and was intending to layup two more layers of bid, prior to cutting and polishing the surface to make a mould.

    IMG_4181.JPG

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    I thought it would be prudent to test fit before I went any further and unfortunately, I'm not getting sufficient clearance at the back of the etension which is brushing the tyre. Clearly, it needs to be around the 1cm mark clear of the tyre and so I'm going to have to change the profile.
    Next plan is to bond some urethane foam to the upper surface, reprofile, add two more layers of bid and polish. Hopefully, this should address the issues with correct fit, following which I will need to verify length vs fork travel to ensure there is no way it will clash with my rad & oil cooler guards.

    As soon as I have the plug made, I will post again and demo the mould being made and then hopefully, the final carbon fenda extenda, complete with UV coating.
    It's amazing how easy it is to waste time in retirement!!!!!!!
     
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  2. SteveRS

    SteveRS First Class Member

    Jan 12, 2019
    799
    500
    British Columbia
    Now that is a modification. I like this type of mod that isn’t purchased and bolted on, it made with your own hands. Impressive. Looking forward to seeing the finished product. Good luck.
     
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  3. Jadorff

    Jadorff Noble Member

    Apr 14, 2019
    647
    343
    Adelaide Australia
    very nice
     
  4. TEZ 217

    TEZ 217 Crème de la Crème

    Mar 6, 2016
    2,939
    1,000
    south shields
    Very interesting look forward to seeing the finished extender.
     
  5. DanielB

    DanielB Well-Known Member

    Jan 13, 2019
    466
    63
    Abingdon, Oxfordshire
    I love this!

    I am really good at wasting time and cannot wait to retire to give me even more time to do it!

    Keep us posted!
     
    • Funny Funny x 1
  6. Kenbro

    Kenbro Noble Member
    Subscriber

    Jul 9, 2019
    819
    443
    Manchester, UK
    I’ve done nothing at all today and I haven’t finished yet, so I’ll carry on tomorrow.
    Ken.
     
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  7. DanielB

    DanielB Well-Known Member

    Jan 13, 2019
    466
    63
    Abingdon, Oxfordshire
    You clearly have this nailed @Kenbro; and I bow to your expertise!
     
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  8. pistonbroke

    pistonbroke Senior Member
    Subscriber

    Aug 10, 2020
    494
    113
    Lancashire
    That’s impressive!
     
  9. NBB

    NBB Well-Known Member

    Jul 9, 2020
    94
    68
    North Yorkshire
    Superb work. Will you be offering to make these up for forum members once you’re happy with it?
     
    • Like Like x 1
  10. Icarus

    Icarus Member

    Sep 11, 2017
    28
    18
    Salisbury
    Er...have you seen what the fantastic Clare @ Bluebird Engineering has available....been through this last year for my 2019 s3 btw...she has carbon extenders for S3 available...beautiful quality which I’ve posted here before..
     
  11. Linx

    Linx Well-Known Member

    Mar 14, 2020
    116
    93
    Stratford Upon Avon, UK
    Have you got a link? I've looked on the Bluebird website but none listed for the 2018+ Speed Triple.
     
  12. Icarus

    Icarus Member

    Sep 11, 2017
    28
    18
    Salisbury
    Just look for Street Triple 2017>...the rear guard profile is exactly the same as the S3...I actually sent her a Street mudguard to use as a pattern, and now she sells them ....check out eBay shop.
     
    • Disagree Disagree x 1
  13. Icarus

    Icarus Member

    Sep 11, 2017
    28
    18
    Salisbury
    • Disagree Disagree x 1
  14. Alan Gilbert

    Alan Gilbert Well-Known Member

    Nov 22, 2018
    182
    93
    Lincolnshire, UK
    #14 Alan Gilbert, Mar 29, 2021
    Last edited: Mar 29, 2021
    Sorry guys . . .I had a fair bit of correspondence with Bluebird and they don't make one for the Speed TRriple RS - fact.
    I was aware of their range of fenda extendas and had never previously seen one for the 2018> Speedy RS and so having examined loads of pictures from different angles, I assumed the Street Triple RS version was the same and would fit. When I spoke to them, they confirmed that it doesn't fit as the two fenders are similar but not the same profile and I have since been able to confirm this.
    The guy here in the UK who deals with his relatives (I believe Sarah is his daughter and they produce them in Spain) told me they do offer a guard for the Speed Triple RS and would add one to their next UK shipment for me but then later contacted me to say they had broken the mould and wouldn't be making another. I was unconvinced by the story to be honest as I had never previously seen one offered by them, despite looking quite regularly over the last year or so but whatever the truth of it, they definitely do not now supply one for my bike.
    I wouldn't mind betting that the Street Triple version could be "encouraged" to fit but it would be a bodge and Bluebird advised me against buying.

    My next plan was to order the Street Triple version anyway and then use it as a pattern and simply take layups off it, modify the thing and then make my own mould but in the end I decided to start from scratch.
    I am currently waiting for mould-making equipment to be delivered so that I can progress further but will keep folks posted.
    I wasn't planning to make these available as I don't really want the ballache of making more but having gone to the trouble of making the mould, it would seem silly if there are folks who really want one and of course, assuming the quality I can achieve is good enough. It isn't something I've done before and so we will have to wait and see. Will repost as soon as I can get started again but if nothing else, folks might find the manufacturing process interesting . . .there's more goes into making something like this than the simple end product would suggest and how Bluebird can sell them for £20 defies logic - I would just lend folks the mould and let them make their own!! :)
     
  15. Icarus

    Icarus Member

    Sep 11, 2017
    28
    18
    Salisbury
    upload_2021-3-29_14-51-31.jpeg

    here’s the back of the ST3 guard on the left and my Speedy on the right...they are identical hence using the plastic ST3 guard as a pattern for bluebird...shame that they broke the mould
    upload_2021-3-29_14-54-50.jpeg
    ...and here’s the finished extender...unfortunately in twill weave so I didn’t fit it and was waiting for a plain weave one from bluebird...kinda explains why I’m still waiting !
     
  16. Alan Gilbert

    Alan Gilbert Well-Known Member

    Nov 22, 2018
    182
    93
    Lincolnshire, UK
    Thanks for posting the pictures Icarus - really very helpful.
    I originally convinced myself that the Street and Speed were bound to have the same fender profile but trawled loads of web photos to confirm it. I realised the Street had a three-piece design as opposed to the Speedy’s single moulding but some of the pictures I saw suggested the shape at the rear was also a little different. When I contacted Bluebird, I spoke to Sarah’s father (I believe it was her dad) here in the U.K. as I believe he deals with the eBay sales post-Brexit.
    It was him who said the Street wouldn’t fit but that they did make one for the Speedy and he would get one shipped for me but it was then that he rang back and said they had broken the mould for the Speedy.
    Looking at those two fenders side by side, the all important rear profile does look identical and so I think I was thrown a curve ball. The mould they supposedly broke was the Speed Triple mould and not the one for the Street but I have my doubts about the “story” I was told simply because they clearly wouldn’t need two moulds for the same product!!!
    I’m in two minds now . . . continue anyway because in fairness, it’s a fun project and I’m quite enjoying it or . . . Buy a Street Triple extenda and use it to make a mould and then make my own in plain weave.
    I had realised the street extenda was made in twill but I have bought some plain weave to use for mine because like you, I wanted a match.
    The other issue, is the weight of the cloth. I took a guess the OEM Triumph fenda is 200gm cloth but I suspect it may be a little lighter and if so, my extenda won’t totally match but it will look better than using twill.
    I will have to think on this but thanks again for posting - I should have asked before I set about making the plug but I had no reason to disbelieve what I was told
     
  17. Icarus

    Icarus Member

    Sep 11, 2017
    28
    18
    Salisbury
    upload_2021-3-29_21-25-50.png
    Just checked the eBay site and guess what?....ST765 17> Fender extender???
     
  18. Alan Gilbert

    Alan Gilbert Well-Known Member

    Nov 22, 2018
    182
    93
    Lincolnshire, UK
    Yes - we know they market one for the Street RS but are telling us it doesn’t fit the Speed 3 RS when clearly from your pictures it should - did you trial fit it on your Speedy and if so, was it a good fit, central on the tyre and with sufficient clearance etc?
    I’m still toying with the idea of buying one and using it as a plug to make a mould and then make my own in plain weave. . . ,
     
  19. Icarus

    Icarus Member

    Sep 11, 2017
    28
    18
    Salisbury
    Yep it fitted pretty well and I did trial fit it
     
  20. Icarus

    Icarus Member

    Sep 11, 2017
    28
    18
    Salisbury
    I’m a designer by profession and a picky bugger so it had to fit pretty well or I wouldn’t use it...problem was it was in twill weave...I said to Clare originally that she should list them as suitable for the >18 Speedys but it never happened

    upload_2021-3-30_9-41-6.jpeg

    upload_2021-3-30_9-41-6.jpeg
     
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