Bolens lawn tractors
Bolens 21HD Super Ride-A-Matic
The Bolens 21HD Super Ride-A-Matic is a 1957 garden tractor from the Ride-A-Matic Series built by Bolens in Port Washington, Wisconsin, USA. It features a 6.5 hp Kohler K161 1-cylinder air-cooled gasoline engine with a 277 cc displacement. The tractor uses a Versa-matic belt-driven CVT transmission with 6 forward and 1 reverse gear, and a variable-geometry drive pulley with six positions. It has a wheelbase of 41.5 inches, weighs 460 lbs, and rides on 4.00x8 front tires and 6-12 rear tires. The tractor is two-wheel drive with manual steering and mechanical band brakes, and an open operator station. Attachments include a 36-inch mid-mount mower deck, a 25-inch snowblower, and a 42-inch front-mount blade.
Power-
Founded-
Model21HD
Technical Specifications
Detailed specifications and technical data for Bolens 21HD Super Ride-A-Matic
Engine
| Type | gasoline |
|---|---|
| Model | Kohler K161 |
| Power | 6.5 hp (4.8 kW) |
| Cooling | air-cooled |
| Cylinders | 1-cylinder |
| Fuel tank | 1 gal (3.8 L) |
| Bore/Stroke | 2.875x2.50 inches (73 x 64 mm) |
| Displacement | 277 cc (16.94 ci) |
| Starter type | manual recoil, electric Optional |
Overview
| Series | Ride-A-Matic Series |
|---|---|
| Built in | Port Washington, Wisconsin, USA |
| Category | Garden tractor |
| Original price | $474 in 1957 |
| Production year | 1957 |
Mechanical
| Drive | Two-wheel drive |
|---|---|
| Brakes | Mechanical band brakes |
| Steering | Manual steering |
| Operator station | Open operator station |
Attachments
| Note | Garden tractors are capable of using tillers, plows, or other ground-engaging attachments. |
|---|---|
| Blade | 42 inches width (106 cm), front-mount |
| Snowblower | 25 inches width (63 cm), front-mount |
| 36" mid-mount mower deck | 36 inches (91 cm) cutting width, mid-mount Bolens |
Transmission
| Name | Versa-matic |
|---|---|
| Type | belt-driven CVT |
| Gears | 6 forward and 1 reverse |
| Details | Variable-geometry drive pulley with six positions on the control lever. Interchangeable drive sprockets provides high and low ranges. |
Dimensions & Tires
| Width | 30.5 inches (77 cm) |
|---|---|
| Height | 37 inches (93 cm) |
| Length | 61.5 inches (156 cm) |
| Rear tire | 6-12 |
| Wheelbase | 41.5 inches (105 cm) |
| Front tire | 4.00x8 |
| Rear tread | 24.5 inches (62 cm) |
| Front tread | 25.5 inches (64 cm) |
| Shipping weight | 460 lbs (208 kg) |
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