Lawn Boy 10730

21″ Push / Walk-Behind Lawnmower  9.6/10


Lawn Boy 10730 21” Kohler XT6 Engine
Lawn-Boy’s 21 in. high wheel push mower is lightweight at 61pds and maneuverable. The Kohler 6.5 gross torque over head valve engine provides plenty of power to cut through tough grass. I’ve always liked Lawn Boy mowers since I cut grass as a kid with them. As all of us know who have used them extensively, the only problem you normally had with these durable little mowers is cranking them when you got the gas/oil mixture wrong, or when they got overheated. This new system starts right up on the first pull as advertised. I had no problems getting it started. The front wheel placements seemed a bit soft to me, as the housing is built from plastic. I thought the cut was smooth, and I like the purring sound from the engine on this mower. The wheels are soft on your yard and designed that way on purpose. Another thing I really like is that the height adjustments are easy and fast to change.

Quick Specs

  • Kohler 6.5 ft. lb. cross torque 149cc OHV engine
  • Auto Choke
  • 21” Cutting Path
  • 11” Rear Wheel (7” front)
  • $239

2 point height adjust system

11” rear wheels make cutting on rough ground easier

Lightweight and easily maneuverable

2 Year Complete coverage warranty

Larger clippings bag


Not CARB Compliant

Front Wheel adjustment is plastic (not durable)


Steve Holdgren Steve Holdgren is an engineer by trade and has worked for some of the largest energy related engineering firms in the world with his latest stint in Switzerland. He holds a degree is mechanical engineering… See more about Steve