Single Cylinder Repair 20 in. Greens Keeper vs Single Cylinder Repair 20 in. Grooved Roller: Spec Comparison
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You are looking at the single cylinder repair 20 in greens keeper vs 20 in grooved roller. Both are manual reel mowers from Single Cylinder Repair with a 20-inch cutting width and rear roller drive. They share the same steel deck, dimensions, and weight. The main difference lies in the reel configuration and cutting height range. One offers ten blades for a finer cut, while the other uses seven blades. Both include a grass catcher and induction heat-treated components.
Key differences
| Aspect | Single Cylinder Repair 20 in. Greens Keeper | Single Cylinder Repair 20 in. Reel Mower |
|---|---|---|
| Blade Count | 10 blades | 7 blades |
| Cutting Height Range | 1/8 to 2-1/8 in | 3/8 to 2 in |
| Model Number | 20-5.50GT-10-GK | 20-5.50GT-7-GR |
Which one should you choose?
Choose Single Cylinder Repair 20 in. Greens Keeper if
- You want the lowest possible cut height of 1/8 inch
- You prefer a reel with more blades for potentially finer clippings
- You need the highest cut setting to reach 2-1/8 inches
Choose Single Cylinder Repair 20 in. Reel Mower if
- You prefer a simpler seven-blade reel setup
- You are satisfied with a minimum cut height of 3/8 inch
- You want a standard maximum cut height of 2 inches
Verdict: Choose the Greens Keeper if you need to cut very low, down to 1/8 inch, or prefer a ten-blade reel. The Grooved Roller model is suitable if you do not need such a low minimum cut height. Both share identical build quality and manual operation specs.
Greens Keeper vs Grooved Roller Specs
Blade count
The Single Cylinder Repair 20 in. Greens Keeper features a reel with 10 blades. This higher blade count typically provides a finer, more consistent cut by engaging more grass blades per revolution. The Single Cylinder Repair 20 in. Grooved Roller uses a reel with only 7 blades. Fewer blades may result in a slightly less refined finish on very short turf. Both designs use induction heat-treated components for durability, but the blade number is the primary difference in cutting mechanics. You should consider your desired turf texture when choosing between the 10-blade and 7-blade options.
Cutting height range
Cutting height options differ between the two models. The Greens Keeper adjusts from 1/8 inch to 2-1/8 inches. This lower minimum height allows for a closer, golf-green style cut. The Grooved Roller adjusts from 3/8 inch to 2 inches. It cannot cut as low as the Greens Keeper, which may matter for fine turf maintenance. Both share the same maximum height. If you require the absolute lowest cut setting, the Greens Keeper offers that capability. For standard lawn heights, both provide ample range.
Drive type
Both mowers utilize a rear roller drive system. This mechanism provides traction for powered operation, meaning the rear wheels are driven to help propel the mower forward. This design reduces the physical effort required to push the machine compared to free-wheeling models. Since both products share this exact drive configuration, there is no performance difference in propulsion. You will experience similar push resistance and maneuverability from both units. The rear roller also helps flatten the turf for a striped appearance.
Power source
Each mower is a manual reel type. They do not use electric motors or gasoline engines. The cutting action is generated entirely by the forward motion of the wheels turning the reel against the bed knife. This means you provide all the power. Both models offer zero emissions and require no fuel or charging. The manual operation is consistent across both the Greens Keeper and the Grooved Roller. You get the same quiet, low-maintenance experience regardless of which blade count you choose.
Build and materials
Construction is identical for both units. They feature heavy-duty steel chassis and tubular steel handles. The deck material is steel on both models, providing robust durability. Both include a grass catcher and a grooved front roller to minimize lawn roll down. The dimensions are also the same, measuring 22 inches in width, 45 inches in height, and 42 inches in length. Each weighs 180 pounds. The only visual difference is the model designation, but the physical build quality and components are matched exactly.
Which 20 Inch Reel Mower Fits You
Golf course managers seeking ultra-low cuts
The Greens Keeper model cuts as low as 1/8 inch, making it ideal for manicured turf. Its 10-blade reel engages more grass per revolution for a finer finish. The rear roller drive ensures smooth traction on hard surfaces, while the induction heat-treated components maintain precision during high-frequency use on greens.
Homeowners preferring a standard low height
This Grooved Roller version cuts as low as 3/8 inch, which suits most residential lawns better than the 1/8-inch minimum. The 7-blade reel provides a reliable cut without the complexity of higher blade counts. It shares the same durable steel chassis and rear roller drive for consistent operation.
Users needing maximum cutting flexibility
The Greens Keeper offers a wider cutting range from 1/8 inch to 2-1/8 inches. This allows you to adjust for seasonal changes or specific turf requirements more precisely. The 10-blade reel works well across this entire spectrum, delivering consistent results whether you are mowing close to the ground or leaving the grass taller.
The products compared
Single Cylinder Repair 20 in. Greens Keeper
Best for: manual reel mowing with rear traction
- Cutting Width
- 20 in.
- Deck Material
- Steel
- Cutting Height
- 1/8 in. to 2-1/8 in.
- Power Source
- Manual
- Dimensions
- 42 × 22 × 45 inches
- Weight
- 180 pounds
View on Amazon: Single Cylinder Repair 20 in. Greens Keeper Affiliate link
This 20-inch manual reel mower from Single Cylinder Repair features a 10-blade reel and a rear roller drive. It cuts between 1/8 and 2-1/8 inches. The steel chassis supports a 20-inch cutting width. A grass catcher is included. It suits users needing a heavy-duty, made-in-USA tool for precise turf maintenance.
Pros
- 20-inch cutting width with 10 blades
- Rear roller drive for powered traction
- Induction heat-treated bed knife and reel
- Cuts as low as 1/8 inch
Cons
- Heavy 180-pound steel build
- Manual power source requires effort
- Large 42-inch length limits storage
Good fit if
- You need a precise 20-inch cut width
- You prefer a rear roller drive system
- You want a made-in-USA steel mower
Skip if
- You require battery or gas power
- You need a lightweight portable unit
- You have limited storage space
Verdict: Single Cylinder Repair 20 in. Greens Keeper delivers heavy-duty precision with its 10-blade reel and rear roller drive. It fits users who prioritize a sturdy steel build and manual control for professional-grade turf care.
Single Cylinder Repair 20 in. Reel Mower
Best for: Manual reel mowing with rear roller traction
- Power Source
- Gas (5.5 GT B&S Engine)
- Cutting Width
- 20 in.
- Deck Material
- Steel
- Cutting Height
- 3/8 in. to 2 in.
- Dimensions
- 42 × 22 × 45 inches
- Weight
- 180 pounds
View on Amazon: Single Cylinder Repair 20 in. Reel Mower Affiliate link
This manual reel mower features a 20-inch cutting width and a rear roller drive for powered traction. The grooved front roller helps minimize lawn roll down for smoother turf. It cuts from 3/8 to 2 inches high. The steel chassis and induction heat-treated bed knife and reel offer precision. It weighs 180 pounds and includes a grass catcher.
Pros
- 20-inch cutting width
- Rear roller drive for powered traction
- Grooved front roller minimizes lawn roll down
- Cuts as low as 3/8 inch
- Induction heat treated bed knife and reel
Cons
- Heavy 180-pound weight
- Manual power source requires effort
- No battery or electric assist
Good fit if
- You want a rear roller drive for traction
- You prefer a grooved front roller for smoother turf
- You need a 20-inch cutting width
Skip if
- You want an electric or battery-powered mower
- You need a lightweight mower under 100 pounds
- You prefer a front roller drive
Verdict: Single Cylinder Repair 20 in. Grooved Roller Mower suits users who need rear roller traction and a grooved front roller for smooth turf. It fits those who do not mind manual operation and a heavy steel build.
Specifications side by side
| Spec | Single Cylinder Repair 20 in. Greens Keeper | Single Cylinder Repair 20 in. Reel Mower |
|---|---|---|
| Power Source | not stated | Gas (5.5 GT B&S Engine) |
| Cutting Width | 20 in. | 20 in. |
| Deck Material | Steel | Steel |
| Cutting Height | 1/8 in. to 2-1/8 in. | 3/8 in. to 2 in. |
| Dimensions | 42 × 22 × 45 inches | 42 × 22 × 45 inches |
| Weight | 180 pounds | 180 pounds |
| Color | Red | Red |
| Model | 20-5.50GT-10-GK | 20-5.50GT-7-GR |
Frequently asked questions
What is the main difference between the Greens Keeper and the Grooved Roller?
The primary difference lies in the reel configuration and intended cut quality. The Greens Keeper uses a 10-blade reel for a finer finish, while the Grooved Roller model features a 7-blade reel. Both share the same 20-inch cutting width and rear roller drive system for consistent turf traction.
Do both mowers have rear roller traction?
Yes, both models include rear roller drive for traction. The Greens Keeper is designed for manual reel mowing with rear traction. The Grooved Roller also suits users needing rear roller traction, adding a grooved front roller for smooth turf movement during manual operation.
Are the dimensions and weight identical for both models?
Yes, the physical specifications are identical. Both mowers measure 22 inches wide, 45 inches high, and 42 inches long. Each unit weighs 180 pounds. They share the same sturdy steel build and overall footprint, ensuring similar handling characteristics despite the internal reel differences.
Which model is better for a finer cut on turf?
The Greens Keeper is better for a finer cut. It features a 10-blade reel, which engages more grass blades per revolution for a consistent, professional-grade finish. This makes it ideal for users prioritizing precision and sturdy steel build for manicured turf care compared to the 7-blade alternative.
What color are these Single Cylinder Repair mowers?
Both the Greens Keeper and the Grooved Roller models are finished in red. This color applies to the steel deck and frame of each unit. The visual appearance is consistent across both models, distinguishing them by their model numbers and reel specifications rather than exterior paint.
Is the Grooved Roller suitable for manual operation?
Yes, the Grooved Roller is designed for manual operation. It relies on a manual power source and rear roller traction for movement. The grooved front roller aids in smooth turf navigation, making it a practical choice for users who do not mind manual effort and heavy steel construction.

