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  1. Started by yellow_cad,

    Have a 72 OSSA MAR and looking for 7 or 8 inch high bars (7/8 inch OD) preferably in the USA but doesn't need to be.

  2. Hi, can anyone help me identify which rear hub I have my 350 Gripper. I thought it was original until I went to fit a new sprocket. The bolt holes don't line up on a Talon TR-222. The hub and original spocket have 6 bolt holes spaced as 3 pairs, the pcd is approx 150mm. The new Talon sprocket has the same centre hole of 130mm, the same layout of bolt holes but the pcd is approx 160mm. The only similar hub/sprocket I can find is a Montesa Cota but I dont the dimensions. If anyone has either of these lying around, and a spare five minutes to measure pcd and centre hole it would be much appreciated. Cheers, Gary

  3. Started by jordi,

    Here are a couple of shots of the bike in action. http://www.trialscentral.com/cms/showartic...?articleID=5434

    • 5 replies
    • 3.7k views
  4. Started by yellow_cad,

    My question is about the drive chain tensioner that pushes up on the chain and provides a tight wrap of the chain on the rear sprocket. The rubber pad that contacts the chain is attached to a steel lever that is somewhat spring loaded. There is an additional spring that attaches to the frame and goes down to the tensioner lever. This second spring was disconnected when I got this bike and the rubber has hardly any use at all. Should this second spring be connected by hooking to the bottom of the steel tensioner lever? If it should be attached, should I lube the rubber with, say, silicone spray? Thanks for any help on this. Jim

      • Like
    • 6 replies
    • 2.7k views
  5. Started by deputy dawg,

    iS there anywhere I can get a Cush-drive shaft puller in the uk I know Keith Lynas has them across the pond

      • Like
    • 4 replies
    • 4k views
  6. Started by nickyburnell,

    Hi, got bad snatch when warm, Oil makes no difference. No luck trying to contact Steve Sell by any method (no I don't withhold my number) so: Anybody know if the In Motion kits are OK? Or any other pointers? Many thanks Nick

  7. Started by mattylad,

    Does anyone have details on the correct paint code/shade for the "fat" stripe on a 1971 Ossa MAR? Thanks

    • 5 replies
    • 4.7k views
  8. Started by jsp,

    Does anyone know of a after market rear brake lever that will fit a 2012 ossa, ive bent mine a bit and wanted to buy a spare but a ossa one is £70 which seems a bit steep jsp

    • 2 replies
    • 1.9k views
  9. Started by toetoe,

    i have wanted a new sherco for quite a while now but recently the ossa as caught my eye, i am hoping to buy a new bike in around a months time, it looks very easy to clean and i quite like the idea of the easy start, i can't afford a new one but i have seen 2012-13 in my price range so i was hoping for some honest answers on the good and the bad points, things like are spares easy to get hold of and are the spares a reasonable price, are they easy to maintain, is there well known problems that you know of.

      • Like
    • 7 replies
    • 4.7k views
  10. Started by jsp,

    I've noticed over the last few weeks my bike seems to have a strange whine when ridden, but only in second gear in all the other gears its fine. Its now got to the point where other people can hear it as I'm riding, the bike its self is riding ok. I'm going to try get a video of it as well I've just been and started the bike to try and get a video of it running in second gear on the workshop stand in the garage and it isnt making the whine so it must be doing it under load

  11. Started by ScottyA,

    Hi everyone , I’m hoping to get a bit more advice regarding my MAR. Over lockdown I’ve rebuilt the bike which I inherited in bits, I had never seen one in the flesh so was a bit lost initially but got some great advice here. The bike is pretty much done now, I didn’t attempt an totally accurate restoration just wanted a presentable bike I could actually use. And after some debate I decided to get the engine professionally rebuilt . Riding it round the garden it seems to run well but I have an oil leak(s) From reading other threads it seems that one of the leaks is common with other MARs in that there’s a small weep from the right side of the gear selecto…

      • Like
    • 6 replies
    • 2.6k views
  12. Started by daveraw70s,

    2020 was a ‘nothing year’ and most people would like to not remember it. I found that I actually spent more money than I thought I could......... pictures to prove. Follow my gripper story #ossa_gripper on Instagram what did you spend ...

  13. Started by JPage,

    Hello I just bought my first bike at 52. Always wanted a trial bike as a kid and I thought I'd better get on with it. Anyway I got a 72 MAR recently. It's in bits and mostly complete. Of all the parts I can't seem to get hold of it's a kick-start lever. If the bike was built up it wouldn't be such a problem but obviously I need to turn the engine over to build it. Anyone know where I might get one? I'm guessing they're the same as other Ossa models.

    • 4 replies
    • 2.8k views
  14. Started by Islandbiker,

    Anyone know where the dust shields are obtainable, i have seen them as part of a kit from the USA, but can’t find them anywhere in the uk?

    • 2 replies
    • 1.6k views
  15. Started by mudyman,

    Hi all !! My 350 Gripper (that I got about a year ago but havent done much with) has a loud engine. The noise seems to be coming mainly from inside the clutch cover but its difficult to say exactly. I opend up this side and have found that the primary chain is quite sloppy. I´m not sure if I could change this my self or if it´s to difficult. Maybe a chain tensioner for In motion would be the right choice as it hasn´t got one ? The othe thing that I noticed is that inside the clutch cover casing there are some very light score marks where the weight on the end of the crank has been rubbing on the cover. I investigated this and have fond that the crank has play in it from…

      • Like
    • 15 replies
    • 8k views
  16. Started by ric h,

    It's in the way when changing the air filter.Do i just pull out on the clip and push down? It must be really tight.I might need a new air filter soon.Are they expensive?

    • 6 replies
    • 2.6k views
  17. Started by scubadaz,

    Hi I'm having the cutting out problem when at cetain temp on my ossa 280 2011 does anyone no where I could take that specialise on ossa near Manchester thanks in advance

  18. Started by chudder,

    The rear brake on my 280i is only any good if it is wet.Any ideas why this should be?

    • 1 reply
    • 1.4k views
  19. Started by lavjot,

    Hi, could somebody please tell me the size and pitch of the rear spindle nut on a gripper.

    • 0 replies
    • 1k views
  20. Started by markieboi,

    Hi guys as title says really, looking to buy a 2011 280i and was wondering if there's anything I need to look out for specifically other than the normal stuff. Really need the help as I'm tossed up between the Ossa and a late gold frame Raga, so peoples opinions on that too would be welcome. Cheers in advance fella's.

    • 7 replies
    • 3.6k views

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