Roy & Christy Martin’s Rump Roast is a Custom 300 Fat Tire Softail Chopper which features a Thunder Mountain 300 Softail frame with Ridewright Wheels 80 stainless spoke wheels, Avon Venom donuts, Gunslinger Custom Paint and custom sheet metal that was hand formed by Roy Martin.
When Roy completed a couple flat black custom sleds he decided to build something with more color.
He noticed that the old metal flake look from the ‘70’s had made its way back including hot rod-style flames. He noticed that they had come back a couple of times since the ’70’s and are looking to be coming back again. So he decided on a modified tribal graphic paint job over purple.
Rump Roast has the hot rod influence with proportions that appear to look standard until you stand behind the bike and say, “Damn, that’s a fat tire.” The fender is down low on the tire with zero daylight between metal and rubber.
The frame is from a Thunder Mountain Harley-Davidson. When Thunder Mountain ceased operations, the Roys Toys Customs’ team went over and bought up a bunch of parts.
Roy has an association with an engine master-builder that plies his creativity on Bonneville cars. Roy dropped off his cylinder heads and after a little black magic the increased flow rate was a whopping 28% over stock. Now the bikes delivers 130+ horsepower to the rear wheel. Good thing, you have to turn that big donut out back.
The sled looks as good as it runs. Hit Beast Mode by hammering the throttle.
Custom 300 Fat Tire Softail Chopper — Rump Roast Specifications
|Owner||Roy & Christy Martin|
|Bike Name||Rump Roast|
|Engine Make/Size||HD 113, Twin Cam “B” Case, Heads Match Ported & Flowed|
|Drivetrain||6 Spd Baker Direct Drive, RSD|
|Frontend||Perse Degreed Trees|
|Swingarm||TMCC/Roys Toys Customs|
|Wheels Front||Ridewright 21 x 3.5 Black Hubs, Black Powder Coated Rim, 80 Stainless Spoke|
|Wheels Rear||Ridewright 18 x 11 Black Hubs, Black Powder Coated Rim, 80 Stainless Spoke|
|Brakes Front||HD 4 Pistol Caliper Driveside|
|Brakes Rear||PM Rear Inboard Driveside|
|Painter||John Pugh, Gunslinger Custom Paint|
|Misc.||Custom Sheet Metal by Roy Martin, Roys Toys Customs. Fulcan Cam Cover.|
Background on Thunder Mountain motorcycles
Thunder Mountain motorcycles are 85% Harley built. Basically it’s composed of mostly Harley parts, but specially customized beyond anything you could get from HD factory. Roy took a production Thunder Mountain bike and transformed it into a custom 300 Fat Tire Softail Chopper.