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Build: Roy’s Toys Customs’ Rump Roast

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.

Custom 300 Fat Tire Softail Chopper

Custom 300 Fat Tire Softail Chopper

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.

Beast Mode

The sled looks as good as it runs. Hit Beast Mode by hammering the throttle.

Custom 300 Fat Tire Softail Chopper — Rump Roast Specifications

 

Builder Roy Martin
Owner Roy & Christy Martin
Location Littleton, CO
Country flag us USA
Website roystoyscustoms.com/
Bike Name Rump Roast
Year/Model 2014 Softail
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.
Here at Roys Toys Customs, motorcycles are part of our dna. My daughter and youngest grandson, Aiden, 3, in front of Rump Roast

In Dallas at the Ultimate Bulder Show with Nikki and youngest crew member Aiden

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.

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