Compare/Bolens 21HD Super Ride-A-Matic vs Bolens 728

Bolens 21HD Super Ride-A-Matic vs Bolens 728

Verdict: Bolens 21HD Super Ride-A-Matic vs Bolens 728

The Bolens 21HD Super Ride-A-Matic and the Bolens 728 are both lawn tractors — here is how they stack up on the figures that matter. Both are rated at the same 7 hp. Bolens 728 is the lighter machine (147 kg vs 208 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Bolens 21HD Super Ride-A-Matic holds more fuel (3.8 L vs 1.9 L) for longer stints between fills. Bolens 728 is the newer design (1972 vs 1957). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.

Tune the fit score

Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

Bolens

Fit score

Best match

Clear

Bolens

Fit score

Best match

Clear

Rated power

7 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

BolensReference

Variable-geometry drive pulley with six positions on the control lever. Interchangeable drive sprockets provides high and low ranges.Reference

air-cooled vertical-shaftReference

Engine

Fuel tank

3.8 LReference

1.9 LReference

Displacement

16.94 ciReference

15 ciReference

Bore/Stroke

73 x 64 mmReference

70 x 64 mmReference

Power

4.8 kWReference

—

Starter type

electricReference

manual recoilReference

Power (gross)

—

5.2 kWReference

Sparkplug

—

Champion J-8Reference

Sparkplug gap

—

0.762 mmReference

Point gap

—

0.508 mmReference

Oil capacity

—

0.8 LReference

Oil change

—

25 hReference

Transmission

Versa-maticReference

Peerless 503Reference

Gears

6 forward and 1 reverseReference

3 forward and 1 reverseReference

Dimensions

Wheelbase

105 cmReference

109 cmReference

Weight

208 kgReference

147 kgReference

Front tire

4.00x8Reference

4.10/3.50-4Reference

Rear tire

6-12Reference

4.80x4.00-8Reference

Lawn/turf front

4.00x8Reference

4.10/3.50-4Reference

Lawn/turf rear

6-12Reference

4.80x4.00-8Reference

Length

156 cmReference

154 cmReference

Width

77 cmReference

—

Height

93 cmReference

104 cmReference

Shipping weight

208 kgReference

—

Front tread

64 cmReference

—

Rear tread

62 cmReference

—

Bolens 21HD attachments

Attachment overview

36" Mower deck

Type

belt-driven CVTReference

belt-driven gearReference

Cutting width

91 cmReference

71 cmReference

PTO & Hydraulics

Mid PTO

—

independentReference

Clutch

—

manualReference

Bolens 728 attachments

28" Mower deck

Overall width

—

91 cmReference

Cut height

—

2 to 10 cmReference

Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.