b40rt

Anything cycling is driven by gimmick, so constant change doesn't indicate constant improvement .....

I suggested it was back to front, and only 5 years later ............

😆 didn't think you would go for it, but remember the original primary chain tensioner was steel and I never had to replace it in over 30 years.

I know you will probably ignore this, but the chain will wear a couple of grooves, then will be fine. Keep it lubricated.

Possibly condensation in the unit, happened to me many years ago. Once dry and sealed never gave me any problems.

Used on 1967 WD B40.

BP5ES is good, 4's are better if you can find them.

We regularly send packages to family in the Falklands, recently sending by sea is quicker than royal mail air !!!

Beta-uk.com is worth contacting.👍

What country are you in ?

He's probably to busy inventing a thumb throttle ......

People sometimes mistakenly thing a 7 will run hotter than a 5, to reduce carbon build up.

It's just fun, go out and get familiar with the bike. Standing up doesn't always come naturally. Make an effort to relax your body when riding. There is no instant gratification in trials, it takes time. Personally I wouldn't worry/practice static balance or big steps just yet.

Nothing wrong with correctly installed and loctited helicoils, lots of misinformation about them.

Something like 90% of injury in trials is to the lower legs, good boots plus shin and knee protection are a must IMO. If your going to Drumcarrow today, there are usually a couple of guys there who sell boots. Also look up Murdo Macphail on Facebook, he often has second hand boots, and also budget new boots.

Another club to consider is east neuk wobblers, great for starting out riders. They have a trial this Sunday at Drumcarrow, worth a visit. (Its fairly exposed at Drumcarrow, so plenty of clothes if your spectating )

If you have access to machining, but a blank from ebay. They are available in a range of sizes. https://www.ebay.co.uk/itm/BLANK-REAR-SPROCKET-60T-520-CHAIN-SIZE-IN-7075-T6-DURAL-55mm-MACHINING-HOLE/165796871957?epid=6007943585&hash=item269a437f15:g:SBQAAOSwc2FZ8KYd&amdata=enc:AQAHAAAAoOiyUQ7pU23hZp4ktuWpuxbAxJEYKQ7UnW++bnNyV4QYxNsKW4TTtLnJ0UZ0Fu0gQm1hjlsOtSvHFEpQg9eRbLSDsMllGitdioZI3sw8pmZTxi7yT05XTb5+xlL95QPitXS8xEDzV2P/Ujd5zMBxcOFYAHPLceGJErRxXX4+vkNtlAMMWVNBzTLiQrwrNDap2jzV5d77B0y5UyUhEtwQCIE=|tkp:Bk9SR-a8nuaVYQ&pageci=b171333b-e727-4eba-a0b0-caebb2b8dfa9&redirect=mobile

Unfortunately not, bucket list 😎

Costa Brava trial last weekend had hand held devices. Each riders number also had a bad code, at the end of the section it was scanned, their score entered and presumably transmitted live. Speak to some one who was there , or the organisations more info.

Did you get stay up floats and aluminium needle ? Float level is critical, you must get that right before anything else. When adjusting the air screw, it is incredibly sensitive so use caution.

" For "lovely interesting engineering and character": Bultaco, Ossa, SWM. (Bultacos are coolest) " SWM's aren't really of the same generation as Bultacos etc, very successful bike in its day, very good quality components, generally cheaper now than others mentioned, no idea why. Most parts available at reasonable prices. No real flaws if maintained, unlike virtually all the other makes mentioned.

Maybe the flywheel you have is from a TY350 ??

TY350 ?

Martin Pennycook also.