Description
Charlie Hatton’s Atherton A.200G bike check
Charlie rides the prototype A.200G with a 9-speed Pinion gearbox and Gates belt drive.
It’s a custom-built frame with a 475mm reach and 438mm rear centre that extends to 450mm at sag, making it mid-way between a stock A.200 size 7 and 8.
Atherton’s additive manufacturing process makes this relatively easy to do without resorting to geometry adjustment and offset headset cups.
Although the coil spring is rated at 500lb, it has been accurately measured on a dyno to 481lb. Charlie also switches between a 490lb spring depending on the track's steepness and conditions.
Fork pressures in the Fox 40 vary between 90-96psi with two volume spacers.
Charlie uses both Continental Kryptotal and Argotal tyre treads, running 23psi front and 28psi rear as a base setting.
Up front, mounted to the Mavic Deemax rim, is a trail tyre insert, which Charlie finds does a similar job to a mass damper without the weight up high near the head tube.
Custom protection is found under the gearbox and shift unit as well as a custom 3D-printed titanium belt snubber at the rear axle.
Hayes Dominion brakes clamp 220mm Galfer rotors front and rear with Galfer Pro green pads.
Our thoughts are with everyone at Atherton Bikes and Atherton Racing following the fire at their facility in North Wales last weekend.