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Description
TrailMaster MK125 Dirt Bike 4-Speed Manual Dual Disc Brakes, Electric Start (14/12), Ages 12 and upTrailMaster has partnered with JHL Offroad to unveil the MK125, a top of the line mid size dirt bike from their PRO Series. The bike boasts a powerful Zhongshen 125cc 4 stroke 6. 3hp engine that can be started with either kick start or electric start. With a seat height of 29. 5" and a weight of just 149lbs, the MK125 is both lightweight and high performing. It comes in three sleek colors red, blue, and green. This model also includes a 4 speed manual
Features
- Balanced Shaft ZS125 engine
- Air-cooled, 4-stroke
- Electric start, with kick backup
- Low 29" seat height for smaller riders
- Newly designed strong frame
- Inverted front shock
- Nitrogen air gas rear shock absorber
- Aluminum linkage
- Performance stainless steel muffler
- Waterproof wire harness
- Alloy foldable handle levers
- Alloy wheels and hubs
Specifications
| Engine Type | Zongshen Balanced Shaft 125 Single cylinder, 4-stroke , air-cooling |
| Displacement | 123cc |
| Max Power | 6.3/7500 (1±1.5%) |
| Max Torque | 8.8/5500（1±1.5%） |
| Compression Ratio | 9.0:1 |
| Shift Type | F4-Speed, N1234 |
| Start Type | Electric / Kick Start |
| Ignition | CDI |
| Min. Fuel Consumption: | ≤367g/kw.h |
| Minimum turning radius : | 1900 mm |
| Lubricant： | 10W/40 |
| Transmission: | Chain Drive |
| Overall Size (L x W x H) | 63*27*42" |
| Wheelbase | 31" |
| Seat Height | 29" |
| Ground Clearance | 10.24" |
| Fuel Capacity | 0.92 Gal. |
| Wheels | SteelRims, High Quality Alloy Hubs |
| Tires | YUANXING FT: 60/100 -14 - RR: 80/100 -12 |
| Frame | High quality Steel Frame |
| Front Fork | Inverted front shock absorbers 43/45mm |
| Rear Shock | Rear none-adjustable mono shock |
| Upper and Lower Connecting Board | Alloy |
| Handle Lever | Foldable |
| Front Brake | Disc |
| Rear Brake | Disc |
| Exhaust | Stainless steel muffler |
| Packing Size | 55*17*33" inches |
| N.W/LBS | 149 lbs |
| G.W/LBS | 213 lbs |
Circular Shifting: We have seen some bikes being sold that use circular shifting. We don't sell them. Circular Shifting means that when the bike is in 4th gear, if you shift up, it goes back into neutral, then 1st gear,
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 5
Cost-effective alternative that works well..
I used these spark plugs on my 2018 Cub Cadet XT2 riding mower as part of the spring preparation. The spark plugs were well packed and arrive in great shape and at the appropriate gap. No issues with starting or operating the mower. These Harbot plugs turned out to be a great cost-effective option for me.
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Reviewed in the United States on April 4, 2026
★★★★★ 5
They work great.
The spark plugs are an exact replacement for my riding mower.
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Reviewed in the United States on May 10, 2026
★★★★★ 5
Good spark
Plugs work well. Mower seams smoother
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Reviewed in the United States on April 30, 2026
★★★★★ 5
Works well!
Style: 16 oz
This stuff works well. I've only ever used it after my tires had been punctured and ran flat... I haven't had a flat this wouldn't seal... 3 uses so far all 3 have fixed flats and been many miles put on since the repairs. I start with as little as possible and if it doesn't seal I just add more, I think I've managed to use far less than recommended and successfully sealed punctures. I've only used it on fat tire e-bike tires. I'm pretty comfortable with the seal and I have no plans to replace the tubes, which saves me a fair amount of trouble. I will update if it springs any leaks without new punctures.
It's very easy to use and actually pretty clean especially compared to automotive type tire repair foams.
The first repair I used it for was a brand new bike that just wouldn't hold air in the rear, totally unsure what caused it to keep losing air but 2 or 3 small doses of slime fixed it.
The most recent slime repair, I had a wobbly bike ride which felt weird and I couldn't figure out why but a few hours after I had returned home both tires were totally flat. They both had a handful or more of some really heavy duty thorns stuck in the tire that likely barely punctured the tubes but the rear tire also had a roofing nail in it. I did not think the slime was going to fill that one, it was a pretty heavy leak once I removed the nail, but Slime did seal it and I've since ridden the bike twice and in the same rough conditions I normally would still holding strong at higher pressure than I normally ride, have yet to drop back down since refilling but I am hoping and expecting it won't be a problem.
Two thumbs up. I always keep a small tube in my bike bag and I am confident if I ever need it while I'm out and about it will be useful.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Who can live without slime great stuff and a good price. 👍
Style: 32 oz
If anyone has an outdoor anything that takes air. You should never be caught without this stuff. It seals your tires on almost anything and it lasts longer than you would expect. It’s easy to use and easy to clean up after using it. It will work well for anything that is supposed to hold air. Great product.
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Reviewed in the United States on April 11, 2026