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These frames were originally designed by US Choppers for their unique ‘Boardtrack Platform’ project. The single cradle design and low-slung weight permits incredible
lean angles. And having the motor weight pushed forward, enables aggressive riding into corners, while the centered drivetrain gives perfect balance and lean symetry. These frames will accomodate any pre-Twin Cam Harley-style engine up to 124 cubic inches including Indian PowerPlus engines, and rear tires from 160x16" to 90/90x21". There are two versions available.... one with a curved backbone that requires a custom curved gas tank, and one with a straight backbone that is intended for use with our new Paughco 1915-style tank.

Note: Frames are build to order with an expected ship time of 8 - 12 weeks. A Paughco Tech will be in contact over the phone to verify build specs.


139S5-USP Curved backbone frame

128S5-USP Straight backbone frame

1915ST Gas tank for #128S5-USP

218BM Billet aluminum under-engine boomerang for single loop cradle (set)

Part #
Current build time 6-10 weeks. A cancellation charge of 20% will be non-refundable if order is canceled after build authorization phone call. check box to agree to our terms and conditions

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Prop 65 Warning +

California Proposition 65 Warning WARNING: Cancer and Reproductive Harm - https://www.p65warnings.ca.gov.

Shipping Information +

Items in stock will be dispatched within 2 business days. Once shipped, you will receive an order confirmation email with a tracking number. For items *built to order, shipping times may vary. To inquire about specific shipping times for custom orders or for products you are interested in, please contact us at info@paughco.com or call 1-800-426-2621. *Built-to-order items include Frames, Springers, Gas Tanks, Oil Tanks, Trike Products, and any product currently out of stock. If an item you've ordered is on backorder, you will be notified within 2 business days of placing your order.