Skip to content
View in the app

A better way to browse. Learn more.

Trials Central

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

Aprilia

  1. Started by Ant-G,

    Hello we have revived our old 1982 Aprillia 50 trials and my son has started riding. After a carb and clutch rebuild it is running well and waiting for Milton Buzzards club to reopen. however, have a few questions we hop someone can help with: We could do with some tyres. The front is 2.5x21 which we can not find- will a 2.75 be suitable? On the rear we have a 3.0x18 as that was all we could find at the time. Think the original was 3.5 - does that sound correct? next is silencer: We are sure the rear silencer on our bike is not original and pretty noisy. Any advice on where we could find an quieter one? Anyone got pictures of an original? tha…

    • 0 replies
    • 1.9k views
  2. Started by reginald,

    Hi All, Can a spilt in the outer [foral] be repaired and can I change outers so that the repaired fork can be put on the spring side only side and use the better outer for the damping side? Thanks P.S. I have seen some reference to conventional fork conversions. Is this hassle free or do brakes, wheels [and obviously triple clamps] need changing?

      • Like
    • 3 replies
    • 2.7k views
  3. Started by brad-climber,

    Hi, would anyone have or know where to locate a manual for a 280 climber? thanks

    • 5 replies
    • 5.3k views
  4. Started by gasgasrob,

    So after the weekend trial had issues with the bike bogging and cutting out after 10 minutes of riding ......I've stripped the carb I'm gonna ultrasonic it this week but I checked the Magneto see pics some rust and damp in places is this an issue could it cause my symptoms

      • Thanks
    • 22 replies
    • 7.6k views
  5. Started by gasgasrob,

    Any idea what the fuel mix is on a 280r

    • 2 replies
    • 2.2k views
  6. Started by gasgasrob,

    Does anyone know how much oil goes in the gearbox and where is the oil filler ?

    • 4 replies
    • 3k views
  7. Started by old man 53,

    Hi I am new to this, Last time I rode a trails bike was 1972, I found a nice old Aprilia 311 in good shape. Just a few questions to start, What fuel mix should I run in the bike? Is there anyplace in the Us that has any parts? I started it on a 50 to 1 mix seemed to run ritch, but everything seemed fine. There is also a engine compression adjustment device on the front of the engine, I have never seen one? Thanks for the help, Mark

      • Haha
    • 4 replies
    • 3.4k views
  8. Started by gasgasrob,

    Having issues bleeding rear caliper any one come across this before any hints I've bled all bikes in past never an issue but this thing will not take fluid to the caliper I've even tryd a pressure bleeder

  9. Started by basinbaker2,

    Guys, just acquired a tx311 , restoration project, but noticed it has a 25mm dellorto, is that standard or a misfit from previous owner? Andy.

      • Like
      • Thanks
    • 2 replies
    • 3.2k views
  10. Started by mudyman,

    Hi all, I was out with the Climber a week ago and it ran fine for an hour but then when it was on tick over just stoped and didn´t start again. Back home I have been tracing the problem and have tried or rather changed the carb, plug, plug cap, kill switch, and the black box under the tank. I have now found out that when the plug is out and its turned over there is no spark the most of the time unless you turn the engine over a lot faster then the spark apears again. It´s not possible to kick it over this fast with the plug in and it just fires up very very ocaisionaly for a couple of beats now and again. I´m thinking that it´s in the stator plate…

    • 9 replies
    • 3.5k views
  11. Started by nigel dabster,

    My contact in Spain has located a nearly new Aprilia climber with only 300kms on it, any intrest to anyone pm me. Not silly money but guess not much demand?

    • 4 replies
    • 2.5k views
  12. Started by Aprilia312M,

    Where's the best place to find a not too costly service manual for the TX 311 M/1?

      • Like
      • Thanks
    • 6 replies
    • 4.6k views
  13. Started by Toni,

    Hi Everyone. Just got an Aprillia 280 climber trials bike, all the wiring has been disconnected. Can anyone give me some advise! Cheers, Tony.

    • 3 replies
    • 4k views
  14. Started by neilfrancis,

    Hello again. Has anyone got the full spec for a 280 climber carb. I have a good carb but the bike was originally a 240. I would like to know if it's just jets or needle and slide that need changing. Thanks

    • 0 replies
    • 1.6k views
  15. Started by neilfrancis,

    Hello Again. Has anyone got any idea where I can get the two cylinder head o rings from or an alternative that I can use. Thanks

    • 2 replies
    • 2.6k views
  16. Started by neilfrancis,

    Hi. Can anyone advise on the ring gap on a 280cc climber. Thanks

    • 2 replies
    • 2.9k views
  17. Started by neilfrancis,

    Hi. Is the disc valve timing on a climber the same as a swm. Thanks

  18. Started by Derek Gadd,

    Hi guys,i am doing a light restoration on a Aprilia txr 312m my question is I want to use tubeless Michelin tyres, as the rims are tubed can I fit the Michelin tyres with tubes will it work? thanks derek.

    • 4 replies
    • 2.7k views
  19. Started by Derek Gadd,

    Hi guys, new member here does any body out there know the correct fork oil level for a 1988 Aprilia txr 312 thanks.

    • 2 replies
    • 2.1k views
  20. Started by neilfrancis,

    Im looking to buy a flywheel puller for a 1990 climber Ive just bought. I cant find a specific one on ebay but a bosch rotax one is available. It is a internal thread of 35mm x 1.5. Any ideas if this is the right one. Thanks

    • 1 reply
    • 2.2k views

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.