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What is the MotoTec Rex 110cc Kids Gas ATV — 4-Stroke Engine?

The MotoTec Rex 110cc Blue is a 4-stroke gas-powered ATV designed for kids ages 10 and up. It uses a 110cc air-cooled single-cylinder engine producing 4.8 kW (about 6.4 hp) at 8,000 rpm with an automatic transmission, electric start, and chain drive — no gear shifting or pull-cord starting required. The Rex 110cc ships with a 9 MPH factory speed limit and a parent-adjustable maximum of 14 MPH, plus a remote kill switch so parents can shut the ATV down instantly. Maximum rider weight is 143 lbs. Front drum and rear hydraulic disc brakes, full front and rear suspension, and 14.5×7-6 off-road tir

Specifications

Technical specifications for the MotoTec Rex 110cc Kids Gas ATV — 4-Stroke Engine
Engine 110cc 4-stroke single-cylinder, air-cooled
Max power 4.8 kW (≈6.4 hp) @ 8,000 rpm
Max torque 6.9 N·m @ 6,500 rpm
Transmission Automatic (no shifting)
Starting system Electric start (12V/5Ah battery)
Drive train Chain (self-adjusting)
Fuel type Regular unleaded gasoline
Fuel capacity 2.2 L
Speed (restricted) 9 MPH factory-set
Speed (unrestricted) 14 MPH via parental control
Rider age 10 years and up
Max rider weight 143 lbs
Front brakes Drum
Rear brakes Hydraulic disc
Suspension Front + rear
Tires 14.5×7-6 off-road, steel rim
Ground clearance 3.35 in
Seat height 24 in
Wheelbase 33 in
Rear rack 11×26×2 in, 22 lb capacity
Safety features Parent remote kill switch + adjustable speed limiter
ATV weight 143 lbs
Headlight Yes (with LED trail light)
Warranty 60-day MotoTec parts replacement

Specifications sourced from MotoTec official specs .

Best for

  • Parents buying a first or second gas ATV for kids aged 10 to 14
  • Riders who weigh 143 lbs or less and want a real 4-stroke engine, not a battery-powered toy
  • Households that need parent-controlled speed limits (9 to 14 MPH) and a remote kill switch
  • Backyards, farms, ranch property, dirt trails, and open private land
  • Buyers who want electric start so a child can mount and start without help
  • Riders who want chain drive with full front and rear suspension at the kid-ATV price tier
  • Anyone replacing a smaller 50cc kids ATV with something more capable
  • Birthday or holiday gift buyers looking for an authorized-dealer purchase with warranty

Avoid if

  • Rider weighs more than 143 lbs — exceeds manufacturer max load
  • Rider is under 10 years old — MotoTec rates this Y10+ only
  • You need a street-legal ATV — the Rex 110cc is off-road / private property only
  • You live in California and need it OHRV or CA-DMV registered — Rex 110cc is Competition Use Only in CA, cannot be registered, and does not meet California emissions standards
  • You want more than 14 MPH — top unrestricted speed is 14 MPH, this is a kids ATV not a teen quad
  • You need a multi-year warranty — MotoTec offers 60-day parts replacement only
  • You want electric or battery-powered — this is a gas ATV that uses regular unleaded fuel

How it compares

Within the MotoTec kids ATV lineup, the Rex 110cc sits between the Renegade 40cc ($849, smaller engine, lighter weight limit, younger riders) and the Bull 125cc ($1,399, larger 125cc engine, slightly higher speed cap). Riders aged 10 to 12 who outgrew a 40-50cc starter ATV typically move up to the Rex 110cc next; riders 12+ or over 143 lbs should look at the Bull 125cc instead.

Compared to electric kids ATVs at this price point (Razor Dirt Quad, Polaris Kids battery quads), the Rex 110cc offers significantly longer runtime — refuel in 90 seconds versus 8 to 12 hours of recharging — and a real 4-stroke engine experience that helps younger riders understand throttle control and gear feedback before moving to larger machines. Tradeoff: gas ATVs require routine maintenance (oil changes, air filter cleaning, chain tension) that battery quads don't.

Compared to off-brand 110cc kids ATVs on Amazon and eBay, the MotoTec Rex 110cc is EPA-approved (compliant with the ATV Action Plan emissions standard), ships from a US warehouse, and comes with parts replacement support through the authorized dealer network. Lower-priced imports often lack EPA certification, US warranty coverage, and have wait times of 4 to 8 weeks for replacement parts.

Frequently asked questions

What age is the MotoTec Rex 110cc designed for?

MotoTec rates the Rex 110cc for riders ages 10 and up (Y10+). The factory speed limit is 9 MPH and the parent-adjustable maximum is 14 MPH, with a remote kill switch so an adult can shut the ATV down instantly if needed. Maximum rider weight is 143 lbs.

How fast does the MotoTec Rex 110cc go?

The Rex 110cc ships with a 9 MPH factory-set speed limit. Parents can unlock the speed limiter via the included parental control adjustment, with an unrestricted maximum of 14 MPH. Most parents start a new rider at the 9 MPH setting and increase it as the child gains skill.

Is the Rex 110cc street legal?

No. The Rex 110cc is sold for off-road use on private property only — dirt trails, ranch land, farms, and backyards. It is not street legal in any US state and cannot be registered with a state DMV for road use.

Can I buy and ride the Rex 110cc in California?

California sales are restricted to Competition Use Only. The Rex 110cc cannot be registered for OHRV use, cannot be registered with the California DMV (green or red sticker), can only be ridden in closed-course competition, and does not meet California emissions standards. California buyers should confirm their intended use before ordering.

Does the Rex 110cc come fully assembled?

The Rex 110cc ships approximately 85 percent assembled. Final setup typically takes 30 to 60 minutes: install the handlebars, attach the front fenders, mount the battery, fill the engine with the included oil, add gas, and run a pre-ride check. Basic tools are required.

What kind of fuel does the Rex 110cc use?

Regular unleaded gasoline (87 octane or higher). The fuel tank holds 2.2 liters. MotoTec recommends running the engine on fresh fuel — drain or stabilize the tank if the ATV will sit unused for more than 30 days.

What is the warranty on the Rex 110cc?

MotoTec provides a 60-day parts replacement warranty on the Rex 110cc. Swag House Store is an authorized MotoTec dealer; warranty claims are processed through us by phone or email. The warranty excludes wear items (tires, brake pads, cables), accident damage, and modification damage.

What is included in the box?

The Rex 110cc ships with the ATV, battery, charger, tool kit, owner's manual, and a free ATV training course. The shipping box weighs 190 lbs and measures 46x28x25 inches — most freight carriers deliver curbside, not into a garage. Plan for two people to move it from the curb.

Does it have an electric start or a pull cord?

Electric start. A 12V 5Ah battery powers the starter — a child can start the engine with a button press, no pull cord required. The battery charges from the engine while running.

Is Swag House an authorized MotoTec dealer?

Yes. Swag House Store is a direct authorized MotoTec dealer based in Cheyenne, Wyoming. All MotoTec products ship from US warehouse inventory, are covered by the full manufacturer warranty, and are supported through our dealer network for parts and warranty claims.
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Curated by Swag House Store
What shipping options do you offer?
Free US shipping on every order, no minimum. Orders placed before 2pm CT typically ship same-day from our US warehouse. Standard delivery is 3-7 business days. You'll receive tracking via email as soon as the shipment is booked.
What does the warranty cover?
All products come with the full manufacturer warranty. Coverage and length varies by brand and model. We help facilitate every warranty claim directly with the manufacturer.
Do you accept returns?
Yes — we offer a 30-day return policy. Returns must be unused, in original packaging, with all included accessories. Return shipping is covered when the item arrives damaged or defective.
Is this a genuine product?
Yes — Swag House Store is an authorized retailer. Every product ships directly from the manufacturer or our US warehouse. 100% genuine, no gray market, full warranty support.
Do you offer financing?
Yes — 0% APR financing is available through Affirm for qualified buyers. Prequalification takes seconds and has no impact on your credit. Approved buyers can split into monthly payments at checkout.
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