In addition to their popular go-karts, Rupp began producing minibikes and snowmobiles in the early 1960s.

Although the company would continue to produce dirt bikes, minibikes and snowmobiles, they would never regain financial stability and by 1978 went bankrupt.

Rupp made many contributions to the design of go-karts, including the step frame and a new braking system that augmented driver control and kart stopping power.

Rupp minibikes were made in a variety of styles with various features, including varying engine sizes, lighting kits and color options.

They featured a 2 1/2 horsepower, 4-cycle Lauson horizontal-shaft engine with a Fairbanks-Morse clutch (an optional 3 HP was available for an extra charge).

Rupp's minibike offering in 1963 was the Dart Ridge Runner, classified as a trail scooter.

It featured a 3 1/2 HP Lauson engine with a belt drive system and dual fuel tanks.

The Ridge Runner was positively reviewed in Cycle World magazine's "Trail Test" in 1963.

Rupp made significant changes to their Continental lineup and added the XL and TT models.

All of these newer models featured front and rear disc brakes, headlight/taillights, chrome chain guards and automatic clutches with jackshafts.

The TT-500 was the top of the line newer model and featured a different chain guard as well as a two speed jackshaft.

[5] Rupp also offered accessories for the bikes at an extra charge, including a front bicycle basket, windshield and crash bar.

Rupp also offered a variety of economy models with frames similar to that of the Continentals with one piece fork/handlebars.

These 10" wheel bikes were outfitted with 4HP Tecumseh HS40 engines with a diaphragm carburetor and for the first time Rupp used a slanted engine plate, which tended to keep the torque converter belt tight as well as changing the "look" of the bike to more closely resemble a motorcycle.

Many features of the bikes were changed including the gas tank, seat (notably manner of attachment), handlebars, exhaust pipe, taillight, chain guard, decals, new motorcycle style center kickstand, among others.

Notably, in 1970 Rupp introduced their TC-1 torque converter to some bikes that they would use on their higher priced models through 1976.

Major changes to the lineup in 1970: Rupp sold five models in 1970, the Roadster, Enduro, Scrambler, Sprint and Chopper.

Some overall changes were made to the bikes: the handlebars were no longer welded to the mounts, the exhaust pipe now ran under the seat, the engines now used a float bowl carburetor/slanted intake combination and the front forks now had internal telescopic suspension.

The Rupp Bandit used the newer style frame on 10" mag wheels with Trials tires.

All Rupps now came with black frames, swingarms and motorcycle fork; the gas tanks and rear fenders were the only painted items.

Other models included the Yankee, Rally, Sprint, American, Magnum, Rogue, Nitro and others.