2025 TM 125R ATV Black/Green

TrailMaster Mid 125R Sport (8") K125 – Mid-Size 125cc Youth Sport ATV

Sport stance, mid-size frame, big step up from the little quads. The TrailMaster Mid 125R Sport (K125) is a mid-size 125cc ATV built for kids and smaller teens who want a real sport feel—125cc 4-stroke engine, fully automatic with reverse, 8" rims, and hydraulic rear disc brakes. Color-matched frame and plastics, sporty bodywork, and big 19"/18" tires give it that “not a toy anymore” vibe.

Price: (Ask) — NO FEES (price + tax only)
Pickup today • Delivery available nearby

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Why families love it

Real 125cc, easy to ride:
125cc single-cylinder, 4-stroke engine with electric start and fully automatic 1F–N–R transmission—just shift between forward/neutral/reverse and go. No clutch, no gear juggling.

Mid-size chassis for growing riders:
With a 27.5" seat height, 8" wheel package, and a mid-size frame, the K125 fits kids and youth moving up from 70–110cc machines without jumping all the way into a full-size adult quad.

Safety + control built in:
Front drum and rear hydraulic disc brake, throttle/speed governor, and remote start/kill give parents real control over how this ATV is used. Aggressive all-terrain tires and a welded steel frame keep it planted and durable.

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Key Specs – Mid 125R Sport (K125)

• Engine: 125cc, single-cylinder, 4-stroke, air-cooled

• Max Torque: ~5.16 lb-ft

• Start: Electric start

• Transmission: Fully automatic, 1F–N–R (forward–neutral–reverse) controlled by shifter

• Driveline: Chain, rear drive

• Front Brake: Drum

• Rear Brake: Hydraulic disc

• Front Tires: 19x7-8

• Rear Tires: 18x9.5-8 on 8" rims

• Length: 57"

• Width: 36"

• Height: 37"

• Seat Height: 27.5"

• Min. Ground Clearance: 4.72"

• Weight (G.W./N.W.): 251 / 209 lb

• Fuel Capacity: 0.58 gal

Rider Size / Range:
Ideal as a mid-size youth/teen sport quad—great for riders stepping up from smaller ATVs. We’ll do an in-store sit test to make sure the fit is right before you buy.

 

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What’s included

• Pre-delivery inspection & test run

• Quick parent/rider orientation (controls, governor, starting, braking)

• Helmets/flags/gloves in stock if you want a safety bundle

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📍 Throttle Theory Powersports
12373 Scarsdale Blvd, Suite C, Houston, TX 77089
📲 832-752-9062