Gravely 812 VS Bolens 21HD Super Ride-A-Matic specs comparison

Gravely 812

General Infos

Make	Gravely
Model	812
Country	England
Production	From 1970  Until 1978
Price	-
Tractor type	-
Fuel	-
Service repair manual	Gravely 812 Manual

Dimensions, sizes and tires

AG front tires	-
AG rear tires	-
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	-
Length	-
Width	-
Height	-
Wheelbase	-
Ground clearance	-
Turning radius	-
Rear tread size	-
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	476 cc or 29.07 ci
Cylinders	1 cylinders
Engine power	-
Engine RPM	3600 (rpm)
Torque	-
Torque RPM	-
Fuel type	-
Fuel injection	-
Fuel tank size	5.3 gal 20.1 L
Oil capacity	2.5 qts 2.4 L
Oil change	-
Starter motor	electric
Starter volts	12 V
Parts And Accessories	Gravely 812 Parts

Electrical and battery specs

Batteries number	1
Batteries voltage	12 V
Battries Amps	43 amps
Cold Amps	-
Ground force	negative
Charging system	-
Charging Volts	-
Charging Amps	-

Clutch and gearbox specs

Trans system	-
Trans type	-
Trans gears	8 forward and 4 reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	-
Steering	-
Braking system	-
Cabin type	Open operator station
Differentiel lock	-

Hydraulics specifications

System	-
Valves	-
Pump flow	-
SVC flow	-
Steering flow	-
Tank capacity	-
Hydraulic pressure	-
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	-
Fuel consumption	-
Pulling power	-

Power take-off (PTO) specs

Claimed power	-
Real power	-
Engine @RPM	-
PTO Clutch	-
Rear PTO	-
Rear PTO RPM	-
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	-

3 point hitch specifiations

Hitch system	-
Rear hitch	-
Rear hitch lift	-
Front hitch	-
Front hitch lift	-

Bolens 21HD Super Ride-A-Matic

General Infos

Make	Bolens
Model	21HD Super Ride-A-Matic
Country	United states
Production	From 1957
Price	474  USD
Tractor type	-
Fuel	-
Service repair manual	Bolens 21HD Super Ride-A-Matic Manual

Dimensions, sizes and tires

AG front tires	-
AG rear tires	-
Lawn front tires	4.00x8
Lawn rear tires	4.00x8
Indus front tires	-
Indus rear tires	-
Weight	-
Length	61.5 inches 156 cm
Width	30.5 inches 77 cm
Height	37 inches 93 cm
Wheelbase	41.5 inches 105 cm
Ground clearance	-
Turning radius	-
Rear tread size	24.5 inches
Front tread size	25.5 inches
Turning radius	460 lbs 208 kg

Horsepower and engin specs

Engine capacity	277 cc or 16.94 ci
Cylinders	1 cylinders
Engine power	-
Engine RPM	-
Torque	-
Torque RPM	-
Fuel type	-
Fuel injection	-
Fuel tank size	1 gal 3.8 L
Oil capacity	-
Oil change	-
Starter motor	-
Starter volts	-
Parts And Accessories	Bolens 21HD Super Ride-A-Matic Parts

Electrical and battery specs

Batteries number	-
Batteries voltage	-
Battries Amps	-
Cold Amps	-
Ground force	-
Charging system	-
Charging Volts	-
Charging Amps	-

Clutch and gearbox specs

Trans system	Versa-matic
Trans type	belt-driven CVT
Trans gears	6 forward and 1 reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	-
Steering	manual
Braking system	mechanical band
Cabin type	Open operator station
Differentiel lock	-

Hydraulics specifications

System	-
Valves	-
Pump flow	-
SVC flow	-
Steering flow	-
Tank capacity	-
Hydraulic pressure	-
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	-
Fuel consumption	-
Pulling power	-

Power take-off (PTO) specs

Claimed power	-
Real power	-
Engine @RPM	-
PTO Clutch	-
Rear PTO	-
Rear PTO RPM	-
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	-

3 point hitch specifiations

Hitch system	-
Rear hitch	-
Rear hitch lift	-
Front hitch	-
Front hitch lift	-

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