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!