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Interesting. I'd not seen those before (and I had looked).
"100 x 12 GW 120mm Axle
Replacement front Switch Lever Thru axle for the RTD, 4S Disc and CX Race Evo Thru Axle framesets""142 x 12 GW 163mm Axle
Replacement rear Switch Lever Thru axle for our Tripster AT, RTD, 4S Disc and CX Race Evo frames"They look like what I have on the Mason.
It doesn't say the front is for the Tripster but I assume it will work.
100 x 12 GW 120mm Axle
Lightweight 7075 aluminium hollow shaft 12mm Thru axle
120mm overall length
13mm thread length
M12 x 1.5mm thread pitch142 x 12 GW 163mm Axle
Lightweight 7075 aluminium hollow shaft 12mm Thru axle 163mm overall length 15mm thread length M12 x 1.5mm thread pitch
I assume these would work for the rear:
https://www.kinesisbikes.co.uk/Catalogue/Wheels/Spares/Switch-Lever-Thru-Axles