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Troy-Bilt Bronco AXIS (16") 208cc Vertical Tine Garden Tiller

Troy-Bilt Tillers and Accessories
Model: 21A-70M8766
(Based on expert analysis, manufacturer ratings and customer reviews)
3.5 out of 53.5 out of 53.5 out of 53.5 out of 53.5 out of 5
6 Reviews
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  • Features
  • Specs
  • 3
  • 6
  • Articles
  • Accessories
Hard SoilHard Soil
Rear Tine Tillers
Tine Rotation
Counter Rotation
Width / Depth
16 / 6.5"

Product Video Disclaimer: "PED is not responsible for any variances from the product in this video and the item you purchase. Please review all product specs prior to purchase."

Newest Innovation In Garden Tilling
New tine design offers true one-pass tilling
Churn effortlessly & thoroughly through both new & existing beds
Unique design delivers virtually no bucking or jumping
Easily operate with just one hand from either side of the tiller
Ideal for nearly every tilling application

Troy-Bilt 208cc 4-Cycle OHV Engine
Provides torque needed to cultivate the most compact soil

Self-Propelled Drive System
1 forward speed with power reverse (plus neutral)
Cast-iron gear case w/ bronze gears

Unique Counter-Spinning, Overlapping Vertical Tines
1 clockwise, 1 counter-clockwise rotating vertical tine
16-inch tilling width; 7-inch steel vertical tines
Tilling depth is adjustable up to 6.5"

13-Inch Pneumatic Ag Tread Tires
Heavy treads provide better grip in cultivated and muddy soil
Adjustable side shield and depth bar

Engine Brand
Starting System
Recoil Start
Engine Cycle
208 CCs
Fuel Tank Size
0.5 Gallons
Engine Cylinders
1 Cylinder
Oil Filter
Tine Position
Tine Direction
Dual Rotation
Depth Adjustments
6 Postions
Tilling Width Min
16 Inches
Tilling Width Max
16 Inches
Tilling Depth Min
1 Inch
Tilling Depth Max
6.5 Inches
Cast-Iron Gear Box
Forward Speeds
1 Forward
Reverse Speeds
1 Reverse
Side Shield
Front Tire Size
13 x 5 Inch
Made in USA
240 Pounds
Product Length
66.0 Inches
Product Width
19.0 Inches
Product Height
45.5 Inches
Consumer Warranty
2 Years
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How-To Library
  3 Questions
Q: what happens with the vertical tines when you hit a rock?
by Gene Roll from Georgia on September 24, 2015

A: Gene,

You should remove as many rocks from the tilling area as you can before tilling. I was concerned about rocks lodging in the tines as well. I have not seen this and part of the reason is that the tines are spinning forward. As you walk behind the tiller the right tine spins clockwise and the left tine spins counter-clockwise. This helps throw rocks forward and out of the way.
by Robert, Product Expert

Q: I am considering this Tiller & the Earthquake 5055C (16") 206cc Counter Rotating Rear Tine Tiller. I live in central Georgia with hard red clay for soil. They both have the cast iron sleeves around the engines, but there are some things I am looking for that I can't determine about either of these models. 1. Do they have pressurized oiling systems? 2. Do they have Crank shaft bearings. & 3. What material are the tines made out of? I am looking for forged steel, preferably. I appreciate your time in answering these questions.
by Carla Mullis (Pending) from Georgia on June 19, 2015

A: Carla,

1. Oiling system is not pressurized.
2. Crank shaft uses bushings, not bearings.
3. Tine material is cold-formed medium-carbon steel

1. Oil system is not pressurized
2. Crank shaft uses bearings
3. Tine material is standard steel

by Robert, Product Expert

Q: Looking at buying a vertical tine tiller. What are the pros and cons of the vertical tine. I can not find any reviews on this tiller
by Mark Smith from Iowa on March 16, 2015

A: Mark - the vertical tine technology is BRAND NEW to the market this year (2015). That's most likely why you aren't seeing any reviews yet. The big benefit of the vertical tine tillers is that they operate much more smoothly and with a lot less vibration than a traditional tiller does, so there's not near as much fatigue on the operator. The tines also seem to pulverize the soil more consistently with less "clumping". The one downside thus far seems to be that users don't feel you can till as fast as you can with a traditional tiller - the forward speed needs to be slower for the vertical tines to work most effectively.
by Robert, Product Expert

Troy-Bilt 21A-70M8766 Reviews & Ratings
Overall Rating
3.5 out of 53.5 out of 53.5 out of 53.5 out of 53.5 out of 5
Exceeded Expectations (2)
Durable (1)
Won't Jerk You Forward (1)
Wont (1)
Easy To Use (1)
Expensive (3)
Tines Always Rotate When... (1)
Tine (1)
50% of respondents would recommend this product to a friend
6 Reviews  Sort by 
Chad N.
Denver, CO
Purchased from Tillers Direct
Purchased 2/23/16
3 out of 53 out of 53 out of 53 out of 53 out of 5
Good - Not Great
I got this being super excited to finally own my own Troy-Bilt tiller! Out of the crate the it went together just fine.

It came with a bottle of oil suggesting that you need to add your own out of the box. The oil both in the tiller and in the bottle are VERY clear which makes it really hard to tell with a good measure of accuracy your level in the engine.

Tilling is good however the vertical action may not be the best for mixing things INTO the soil - like top of dirt to bottom....
View Image
Cons: Expensive
Chad Does Not Recommend This Product
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Sandhills N.
Leavenworth, KS
Total Helpful Votes
19 Helpful Votes
5 out of 55 out of 55 out of 55 out of 55 out of 5
Works Much Better Than You Might Think!
Was in need of a new tiller, and hated the thought of spending over a grand on a new one, even though I knew I would like the forward rotating tines of the Pony tiller. I wasn't too keen on counter rotating tines, so I decided to give the new Troy Bilt VTT a chance.

I was skeptical at first, but after using the tiller once, I was blown away by how well it worked. Plowed through my hard clay in no time. Very impressive. Was kind of jerky when the tines hit the side of the garden or when... more
Pros: Easy To Use, Exceeded Expectations, Wont, Won't Jerk You Forward
Cons: Expensive, Tine, Tines Always Rotate When Forward Is Engaged
Sandhills Recommends This Troy-Bilt Product
Robert, the Tiller Expert
Product Expert
Thank you for sharing such a wonderfully detailed review. This kind of feedback is so helpful to others, and we appreciate you taking the time to write it.

We're very happy to hear that it's working out well for you. Best wishes from us here at PED, and have a great spring!
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Patrick M.
Marshall, VA
5 out of 55 out of 55 out of 55 out of 55 out of 5
Take The Time To Learn--it's A Great Tiller
I like this tiller a lot

Out of the box, I would have given this three stars, but now that I have learned to use it, I give it 4.5. Since the rating system is only integer based that rounds to 5, but be advised.

You have to get used to the fact that under its own power it is just a very slow mover. That doesn't matter much when you are tilling but it will when you are trying to move it uphill to, say, the garage.

Having said that, this little beast has some wonderful new features.... more
Patrick Recommends This Troy-Bilt Product
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Ken C.
New Buffalo, MI
Purchased from Tillers Direct
Purchased 12/3/15
Total Reviews
3 Reviews
Total Helpful Votes
12 Helpful Votes
4 out of 54 out of 54 out of 54 out of 54 out of 5
Very Surprised With This Tille
Bought this because I needed a tiller for rough ground and thought this might do the job, I was very impressed with how smooth it worked thru my ground it is slow mover but when it moves thru the soil is tilled very well as much as I didn't like the cost I would buy this one again
Pros: Durable, Exceeded Expectations
Cons: Expensive
Ken Recommends This Troy-Bilt Product
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James C.
Grain Valley, MO
2 out of 52 out of 52 out of 52 out of 52 out of 5
Never Again
Tiller started ok when I first got it, but would not shut off. Took an hour or so to find the loose connection to the shut off switch. This indicated to me poor quality control at the factory. Used this season and had less than 7 hours on the machine and had to take it in for repairs.

Transmission had failed and had to be replaced. Fortunately covered by warranty, but would have been a $586 bill had it not been. That is on a tiller I paid $900 for. What will next season bring?

I'm... more
James Does Not Recommend This Product
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John W.
Lake Charles, LA
2 out of 52 out of 52 out of 52 out of 52 out of 5
I have made seven passes and still need to do more. It takes a muscle man to turn it around. It was a big mistake buying this..
John Does Not Recommend This Product
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