TRRS ONE RR 80CC 2024

[anachronism]

UPDATE: 12 tooth front sprocket, JTF 1906, fits w/modification of the rubber chain guard to allow the sprocket room to spin and add 2 chain links (128 vs 126 stock). This mod transforms this bike for the better. The rear suspension is now alive; springy & lively, the bike "pops" off ledges, drops & other obstacles. The chain no longer tries to wrap around the front sprocket under engine breaking or when bump starting & requires minimal chain tension (pinky finger between the s/arm & tensioner). If this bike is just going to be ridden in small circles in the back yard or a typical small trials area this mod isn't necessary, but if you want to ride the SSDT or any distance ride like I do then this mod is a must as it gives this bike the legs it needs for travelling at speed in 5th & 6th. The only down side is first is now just low enough for me to climb the stupid steep climbs very aggressively. No more stopping to smell the flowers part way up.

Two other small mods also transformed this bike. It came w/a quick turn throttle tube which I replaced w/my slow turn from my 125. Big mistake. I was having a hard time grabbing enough throttle for the long climbs & not getting into the meat of the power band resulting in failure. Since the first 4000 rpms of throttle are unusable the quick turn throttle works a treat, no more failure.

Another mod was to install the S3 curve pegs which I had kept from my 125. I hated them in short order on the 125 but on the 80, which has to be ridden aggressively, they work decent. Large platform for my big feet & set back. However, the sharp set screws caught me out once already. Hopefully they dull w/time & use.

For my next/last major mod I am going to find a mint low hour 2013 - 2017 KTM 85 SX & do an engine swap so I get what should have been in the frame from the start. Hopefully, better shifting & better running for the first 4000 rpms. In for a penny, in for several thousand more!

 

[balga]

I have had a TRS80 for about a year for my son. Prior to that I had pretty much every juniors bike available, among which 3 beta 80, vertigo 50s, beta 50s, ty80, multiple osets, on top of that I have experience with beta, vertigo, EM, sherco, montesa, so while I’m not a great rider by any stretch, I have dealt with pretty much every brand in trials.

initally we had some problems but were all taken care by trs which acted in conjunction with the importer in an impeccable way.

TRS shipped a crate engine across the globe in 5 days so that my son could compete in the Nationals, and my son did compete and won on it.

speaking from experience, problems happen with all brands but not many send an engine across the world so that a little kid can ride a race, I can name names and do multiple examples of the opposite behaviour but best to stick to TRS merits here.

the new side case took a bit to be available but transformed the bike and the reliability has been excellent since and on par with the bigger bikes.

not only, but we installed a bigger bore cylinder and the engine took it no problems and the reliability hasn’t changed.

we live on an acreage and my son uses his bike every single day, and every single day this bloody thing starts first kick, hot or cold.

compared with those bored out 50cc by beta with no linkage and concrete suspensions, this bike goes like an airplane.

not to mention we installed a gold super fast throttle.

today I took it for a ride and had my 3 year old standing on my feet, so probably close to 100kg weight and this bike was just chugging along in third up and down hill at trials speeds.

the suspensions are perfect, we added a compression adjustor to the forks to make it a bit quicker but to be honest it wasn’t needed, the shock is absolutely standard.

my son (12yo, 35kg weight) hops this thing left and right and rode this bike in T3 in local club trials.

I don’t know what else to ask to this bike, it’s been a rocky start yes but turned out absolutely great.

While I respect the experience of others, I feel that TRS with us worked in a professional manner and this bike satisfies all our needs.

is it perfectible? Of course! A proper ktm engine or a small expansion chamber would be killer. Some components should drop the chinesium but it does what it promised.

and I repeat, a beta 80 is not even close, from a geometry point of view, and from a engine power delivery point of view.