Thumpstar Tri-bar Chassis
With developments in chassis strengthening and design, the new Tri-Bar Frame from Thumpstar allows the bike to feel more solid under foot while allowing the bike to perform with greater agility and comfort than ever before. Additions to the frame allow the header pipe to be re-routed under the frame, reducing the likeliness of pipe burns to the legs, include removable foot-peg mounts, which can be easily replaced and allow the kick-stand to be removed for racing, and a reinforced adjustable steering stop. The new frame is also capable of housing the new thumpstar airbox, but does not have this as a stock option yet.
We’ve redesigned and strengthened our AK7 wheels to give you the comfort of knowing buckled rims and loose spokes are a thing of the past. The cast aluminium hub has been changed to run a 6 bolt sprocket and 4 bolt disc, while moving to a 20mm axle that allows for oversized wheel bearings. For ths TSX125 this year we’ve swapped those stretch prone steel spokes for anti-stretch and snap resistant stainless spokes. And lastly, the rims have been upgraded to top of the line aluminium alloy, and increased in size to 17/14 combo, in stealth black.
VS1 Front Forks
Our new line of VS1 front forks provide a plush yet stable ride through all those bumps, ruts and jumps. Improved outers coupled with our reliable valving lets the front end to have a settled movement while allowing greater front wheel feedback, keeping the fork to be rigid while handling bigger impacts.
Pipe Bomb 2.0 head pipe
A redesigned frame came with requirements for a new exhaust header. The new Pipe Bomb 2.0 head pipe from Thumpstar allows exhaust gasses to expand, cool, and ramp back up at a higher velocity when exiting. This results in a greater bottom, and low end response while keeping the tuning in check for the top end.
Swingarm and Linkage developments
The new TSX line of bikes have received yet another significant upgrade which brings performance closer to that of full size motorcycles, rear linkage. Rather than traditionally attaching the shock to the top of the swing-arm, we have scaled and applied linkage shared with the likes of full size race bikes, to attach to the bottom of the swing-arm. This improves handling in the rear and completely changes the riding experience of these bikes.
YX-R 125 Engine
Giving you the thump you need to get off the line and punch that gets you out the gate, the YX-R125 engine delivers a modest 8+ HP at the crank. Precision engineering from Yin Xiang delivers a reliable and strong engine package that consistently gets the job done.
|ENGINE & TRANSMISSION|
|Engine||YX | 4 Stroke|
|Gearbox||Manual | 4 Speed (N1234)|
|Carburetion||Mikuni VM22 26mm|
|Exhaust||Pipebomb DW-1 | 38mm Exhaust System|
|Final Drive||PSC 5 Bolt Sprocket | 428 HD Chain|
|Top Speed||90kph / 55mph (depending on gearing)|
|SUSPENSION, BRAKES, & WHEELS|
|Suspension Front||VS1 Inverted Forks | Length 770mm | 45/48mm Fork|
|Suspension Rear||VS1 Mono shock | Length 325mm|
|Brakes Front||220mm Disc | HSK Dual Piston|
|Brakes Rear||190mm Disc | HSK Single Piston|
|Wheel & Tire Front||Alloy Rim | 70/100-17|
|Wheel & Tire Rear||Ak-7 Alloy Rim w/ Rim Lock | 80/100-14|
|DIMENSIONS & WEIGHT|
|Wheelbase (axle to axle)||1260mm | 50"|
|Seat Height||830mm | 33"|
|Product Weight N.W | G.W||70/80 kg | 154/176 lbs|
|Tank Capacity||3.4 Litres | .9 Gallon|
|Product Packing Size||1420x430x640mm | .40m3|
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