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John barnett

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Posts posted by John barnett

  1. Hi there

    my son has one for a while a few years ago  - did well on it!
    rear 17” no problem, loads available

    front 20” - nothing available. Luckily we had a good front so no problem. What most people do is lace a 19” rim to the front hub, and then loads available.




  2. Well with all of the trials bikes prepped and sorted,  the latest project to hit the workshop for covid19 project is a 1977 IT 175!

    Couple of questions ...

    1 - both mudguards are good condition but very faded - what’s the best bet to paint ? And does anyone know the colour code ?

    2 - long shot but does anyone have an airbox cover and filter cage ? (Or know where I could get them)

    3 - piston and barrel look ok but seems low compression ? Was going to put a set of rings in as it’s not blowing past  the rings - I can get nos rings - but will 40+ year old rings be brittle ? Better bet some pattern ones ? 
    mid new pattern ones might as well get piston kit ?

    I think that’s about it for now!



  3. Hi andy

    the mods aren’t too bad at all ! To be honest you are giving away the chassis and motor - I even thought of buying it for the money to build another and sell it on !!

    i would sell the yam engine and go for it - would make a fantastic bike with the Honda engine



  4. Hi there

    Had mine since late 2019, and suits me fine (at 53)..

    Great to ride on easy route (electric start is great), I can finish a trial and still feel like I could ride another lap, simple maintenance .....and 30-40% cheaper than other new bikes !

    oh.....and I got a podium at the weekend and a mention in TMX !:thumbup:



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  5. 6 minutes ago, metisse said:

    Its an interesting subject re Specials. We have seen Pre 65's go from the Classic's intended in the ninties and before , evolving and evolving, all on the somewhat rose tinted assumptions " It could have been done in the day " , to now most are super engineered, super competitive , dont look in many cases classic, all because its been allowed to dtrift this way.  Riders would almost give their left bollock to win the most prestigous classic trials, whilst riders who support classic trials on the real  classic machines dont waste a stamp anymore, one because the events have become far too hard. 

    Twinshocks are going the same way, and the amount of posts on vairous sites showing bikes with aircooled mono forks, engines tubless tyres the list goes on  and the apparent apathy towards this shows that twinshocks will go the same way as Pre 65.. given time. 

    The only way to stop this is to have some hard and fast rules about what is accepetable and whats not...In Spain, they have in my opinion the best trials and the best rules.. your bike is vetted and if it conforms to how it should be then you can ride in the appropriate class. A friend of mind cut the bottom rails off his 1973/4 Bultaco, so now he has to ride pre 80 no if's no buts.  Its a can or worms on what should be allowed and what consitutes a mod to far... something that needs discussing in a sensible way.

    These pit bike engine machines reared their head a few years back I remember, and now I know several other people looking to build one.. great,  no issue whats so ever , you ride in a specials class or or a class for pit bike engines.. 

    I am all for bums on seats and trials for all.... 


    Completely agree in almost all respects. we have a ty175 and Fantic 240 that my son rides competitively to top national level. The back wheel rebuild  for the Fantic cost almost as much as this bike ! 
    The  point of this was to keep an old guy busy (my dad - and he has done many  many rebuilds for me) , at minimal cost to me ! The result my son might ride now and again in a Wednesday night or Saturday easy trial - against anything that anyone wants to run in the easy route - and most people up our way will just say crack on, well done. Actually at the trial last Sunday a load of people asked me and my son “so when’s this bike coming out? Can’t wait to see it “


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  6. 17 hours ago, still trying said:

    I agree metisse, but then we're back to how many and what mods put you in the "special" class. Cut frames, steering head mods, laid over shocks, removed bottom cradle rails....I feel a headache coming on

    Initially perhaps set it up to get all those excluded bikes back out being seen and ridden

    Personally, I admire both, carefully restored/maintained originals, and the creativity of the specials. 

    John, well done, your workmanship looks great, If we didn't know better it looks like a production bike with a different silencer.




    Thanks for that !

    good praise that it looks like a production bike - just need the right trial to try it out ! ??

  7. The reality it was a project to keep my dad busy, and to have resurrected an old rolling chassis into something rideable. 
    The plan isnt to ride in Kia rounds or the like (me and my son have supported them the last 4 years on “proper” twinshocks), just maybe a few local trials (not in a specific Twinshock class) to be honest I also wanted to see if I could build a bike for £500 (ok - so I overshot a little !) and win an easy route trial against modern bikes (with my son on board - not me !!) ??



  8. No, Chinese pit bike engine. Comes complete with carb, air filter, exhaust and all electrics. 
    I went for the largest possible front sprocket and had to have a back sprocket made to suit but gearing seems fine .



  9. Hi guys

    thanks for the replies and comments ! 
    biggest problem on the build was altering the frame to fit the barrel through the frame- I’ve added a pic- but it was relatively easy to cut and fabricate. It’s is a short wheelbase and very light (I’ll check- the bike is at my dads, it’s been his project to keep him busy)- but I guess maybe 2” shorter than modern trials bike and I would say 60ish kg ?.

    Because the wheelbase is short we had to move the handlebars forward on the triple clamps, other than fabricating engine mounts and brake pedal, all straightforward ! Just as ever it’s the little bits and pieces that take the time.

    I’ll take some more photos of the completed bike tomorrow - but thanks again for the comments !




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  10. I was at the trial (well for 2 sections till my Swm lost spark !!) my son was riding as well and was good to see his scores as  he went round, and know when he would be towards the finish.

    obviously won’t make it to club trials - clubs struggle to get observers with pencil and paper never mind scanners !! but got to say it was good.





  11. Hi there

    I'm building a trials special using an Italjet 100T rolling chassis.

    I need a set of front brake shoes and a rear sprocket but struggling to find spares.

    Any thoughts on either who could supply them, or what they are the same as ?



  12. Hi there

    What's the best gearing on Fantic 240 ? Currently running 11/39 and after first ride I think needs slowing a little (possibly to 12/39?)

    Standard of riding is expert Kia sections - pretty much modern riding style.

    Any advice appreciated.






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