Stock rims were powder-coated to look like the stock anodized aluminum rims. The rear also needed a Sunstar sprocket and an RK 520 O-Ring chain. The brakes are stock as well, but they use EBC pads and Duncan Racing Crown Series brake lines. A stock rear shock was fully rebuilt and refinished before the parts were added.Īgain, powder-coated, rebuilt standard hubs are used in the rear. Instead of other stock parts, the swingarm was finished up with an RPM 49-inch Dominator axle, bearing carrier and anti-fade nut. Duncan believes the ’86 parts are “superior in function to the ’85 model.” A stock 1986 swingarm was rebuilt and refinished.
ATC 250R IN CRATE UPGRADE
The stock ’85 swingarm was in decent condition, but Duncan chose to upgrade the swingarm, rear bearing carrier, axle and rear brake caliper to 1986 ATC parts or specifications. The front hub was also rebuilt and powder-coated. All of the hardware is re-plated, powder-coated or replaced.
A stock ATC 250R fork was rebuilt and mounted to the frame. Slowly and carefully the ATC was rebuilt starting with the refurbished frame. Only then was it powder-coated Bengal Red. It did need to be stripped, sand-blasted and inspected for cracks. The frame required no real rebuilding, welding or gusseting. This machine was apparently in good condition. When the vintage ATC arrived at Duncan Racing, it was pulled completely apart with no nut or bolt left fastened.
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