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HKM-9845587 110cc 4-Stroke Gas Dirt Bike for Kids with Rear Coil Shock Disc Brakes Both Wheels and Knobby Off-Road Tires
HKM-9845587
A 110cc Four-Stroke Dirt Bike for Kids
The HKM-9845587 is a gas-powered dirt bike built around a 110 cc four-stroke engine, so there is no oil mixing, ever: straight gasoline in the tank and riding from there. The engine pulls up to 50 mph and starts on a pull rope, feeding an automatic clutch and a chain. A telescopic fork leads the front wheel while a coil spring shock works at the rear, and disc brakes slow both knobby wheels. White bodywork with flame graphics and a side stand finish the bike.
Key Features
Six details that define how the HKM-9845587 is built and how it rides.
110cc Four-Stroke Engine
The 110 cc four-stroke burns straight unleaded gasoline with no oil mixing, ever. It pulls to 50 mph with a broader, calmer power spread than a two-stroke of the same size, which flatters growing riders.
Rear Coil Spring Shock
A coil shock works between the frame and the swingarm, taking the bite out of ruts and landings. Paired with the front fork, it keeps the knobby tires tracking where the rider points them.
Automatic Clutch, Chain Drive
An automatic centrifugal clutch feeds the chain, so the bike rolls away from a stop on throttle alone. There is no gear lever and no clutch lever for a rider still building throttle discipline.
Disc Brakes at Both Ends
A disc sits at the front wheel and a second at the rear, splitting the stopping work across both ends. At a 50 mph pace, balanced braking is part of the machine, not an accessory.
Knobby Off-Road Tires
Deep-lug knobby tires wrap both wheels and clear mud as they turn, keeping grip consistent through dirt, grass and gravel sessions.
White Bodywork, Flame Graphics
White shrouds carry flame graphics over a long flat seat, with a white number plate up front. The look reads proper motocross, and the side stand parks it between rides.
Overview
A four-stroke 110cc dirt bike with a rear coil shock and discs at both wheels.
The HKM-9845587 is the step up from the small two-strokes: a 110 cc four-stroke that burns straight gasoline with no oil mixing, pulling up to 50 mph through an automatic clutch and a chain. The four-stroke layout trades the two-stroke's snap for a broader, calmer power spread, which suits a rider moving up in size and speed. Suspension comes from a telescopic fork and a rear coil shock, stopping comes from discs at both knobby wheels, and the pull starter means no battery ever stands between a rider and the next session. White bodywork with flame graphics finishes the bike.
Four Strokes, Zero Mixing
Straight gasoline in the tank, riding from there.
The four-stroke engine takes its oil in the crankcase, not in the fuel, so there is no measuring, no mixing and no stale premix to worry about. Fill the tank with straight gasoline, pull the rope and ride, session after session.
Full Specifications
What it runs, how it stops and what it carries.
Engine, Frame and Suspension
How the 110cc four-stroke and the rear shock work together.
The HKM-9845587 runs its 110 cc four-stroke low in a welded steel frame, feeding an automatic clutch and a final chain. The telescopic fork steers the front while the coil spring shock works at the rear, giving the knobby tires room to grip over roots and ruts. A disc at each wheel does the stopping, worked by both handlebar levers. The four-stroke layout means straight gasoline in the tank and oil checks in the crankcase instead of mixing cans, and the spark plug stays reachable for checks between sessions.
What’s in the Box
Everything needed to get riding, right out of the crate.
1 x Dirt Bike
The HKM-9845587 frame, engine and wheels, partially assembled
1 x Owner's Manual
Setup, break-in and care guidance
1 x Tool Kit
Wrenches for the final assembly steps
1 x Spare Spark Plug
A ready backup for the 110 cc engine
1 x Warranty Card
Registration and coverage details
1 x Assembly Hardware
Bolts and fittings bagged by step
Why Choose the HKM-9845587
Six further reasons riders pick the HKM-9845587.
No Mixing, Ever
The four-stroke takes straight gasoline, so there is no measuring cup, no separate oil can and no stale premix. Fill up and ride, which parents appreciate as much as riders do.
Power That Grows With the Rider
The 110 cc four-stroke spreads its 50 mph capability across a calm, usable curve rather than a two-stroke hit, so throttle lessons build skills instead of adrenaline.
Real Suspension Front and Rear
A telescopic fork up front and a coil shock at the rear give the tires room to work over rough ground, which keeps a rider settled where a rigid rear end would bounce them wide.
Brakes Match the Speed
A disc at each wheel, worked from the handlebar, gives stopping power a 50 mph machine deserves. Modulating both levers smoothly is the first skill to drill at this pace.
No Gears to Learn
The automatic clutch feeds the chain by engine speed, so the rider manages throttle and brakes only. The step up in speed arrives without the step up in shifting complexity.
Nothing to Charge
The engine starts on a pull rope and runs on gasoline, so a session never waits on a wall outlet, and there is no battery pack to fade halfway through the afternoon.
Frequently Asked Questions
Quick answers about the HKM-9845587 dirt bike.
What fuel does the engine burn?
Straight unleaded gasoline, nothing mixed in. The four-stroke carries its oil in the crankcase, so the fuel tank and the oil fill are separate, and neither measuring nor mixing belongs in the routine. Check the engine oil level as part of the pre-ride walkaround, keep the plug clean, and the engine stays honest. A spare spark plug ships in the box.
How fast does the bike actually go?
Up to 50 mph (80 km/h) in stock form. Real speed moves with rider weight, surface and terrain. That is a serious pace, and it belongs on a closed course with full gear and an adult paying attention, every single session. This model suits a rider who has already built skills on a smaller machine and shown respect for the throttle.
Does it have a gear lever?
No. The engine feeds an automatic centrifugal clutch, so power arrives as the revs rise and the bike rolls away from a stop without any shifting. There is no clutch lever, no stall at a stop, and no gear hunting on a slope. The rider manages the twist throttle and the two brake levers. The final drive is a chain, so tension checks belong on the service list.
Is a four-stroke better than a two-stroke for a kid?
For most growing riders, yes. The four-stroke spreads its power across a calm, usable curve instead of arriving in a sudden two-stroke hit, it burns straight gasoline with no mixing, and it idles more politely. A two-stroke of the same size feels snappier and lighter, but the four-stroke's manners make it the easier machine to learn on at this speed.
How does the engine start cold?
With the recoil rope. Set the bike on its side stand and pull the rope in one smooth, full stroke rather than short yanks, letting it rewind between pulls. Most cold engines catch within a handful of honest pulls. If the engine was flooded by repeated pulling, wait a minute, then pull through with the throttle shut. A fouled spark plug is the other usual suspect, which is why a spare ships in the box.
Where is the bike meant to be ridden?
On private land and closed courses, with an adult present. It is not built or approved for public roads, so keep it off tarmac traffic entirely, and check local rules before the first ride because some areas restrict small gas-powered bikes beyond the road question. At this speed, choose wide, open ground without holes, wire or fences anywhere near the fast line.
Quick Troubleshooting
Common HKM-9845587 issues and what to check first.
The engine will not start
Confirm the tank has fresh straight gasoline and the engine oil is at its level mark, because a four-stroke needs both to run. Pull the spark plug and check it is dry and light tan rather than wet or dark, and swap in the spare from the box if it looks fouled. Pull the rope in full, smooth strokes rather than short yanks, since a half pull never spins the engine fast enough to catch. If the plug is wet, the engine is flooded: wait a few minutes, pull through with the throttle shut, then try again.
The engine bogs at full throttle
An engine that hesitates when the throttle opens is usually being fed badly rather than broken. Check the air side first, because a filter packed with dust after a session chokes the intake exactly this way. Then confirm the fuel flows freely and the plug color after a short run is light tan rather than dark. Work one cause at a time and note what changed, rather than turning every screw at once.
The chain skips under load
A skipping chain is a tension and alignment problem until proven otherwise. Check that the chain has roughly half an inch of free play at its tightest point, and adjust the rear axle adjusters evenly on both sides so the rear wheel stays square with the front. An over-tight chain strains the bearings and an under-tight one skips exactly under throttle. Lubricate the chain after dusty sessions, and inspect the sprocket teeth while you are there, because hooked teeth will eat a fresh chain in return.
The brakes feel soft at the lever
Soft lever feel on a cable-worked disc usually means the cable has stretched or picked up grit. Check that the lever actuates the caliper fully at half travel, and take up the slack with the barrel adjuster at the lever before touching anything at the wheel. If the feel stays soft, check the disc face is clean and dry, because oily fingerprints from assembly or lube overspray will cut braking power noticeably. At this bike's speed, brake checks are not optional.
The rear shock feels dead
The coil shock should settle the bike within one bounce after a push down on the seat. If it clunks over ruts or the bike wallows, check the mounting bolts top and bottom are tight before judging the unit, because a loose mount mimics a worn shock. Inspect the spring for damage after a hard landing. If the mounts are tight and the spring is sound but the ride stays harsh, contact support rather than disassembling it.
The engine overheats on long sessions
A four-stroke that smells hot or loses power mid-session is usually starving for airflow. Let it idle, then shut it down and clear packed mud and grass off the cooling fins and around the muffler. Check the engine oil level, because low oil makes a four-stroke run hot. Give the engine a full cool-down before restarting, and break long sessions into shorter ones on hot days rather than pushing through the heat.
Service & Policies
Coverage that keeps working long after the order arrives.
Free Shipping on All Orders
Every order ships free. Handling time: 0-1 business days (Monday to Friday). Transit time: 2-5 business days (Monday to Friday). A tracking number is emailed as soon as the parcel leaves our warehouse.
180 Days Purchase Protection
Your purchase is protected for 180 days from the delivery date against manufacturing defects and damage in transit. If something arrives wrong, we make it right.
30 Days Money Back Guarantee
Not completely satisfied? Request a return within 30 days of delivery for a full refund. We keep the process simple and hassle-free.
24 Months Warranty Service
The product is covered by a 24-month warranty from the delivery date against manufacturing defects. Coverage includes parts and labor; normal-wear items are excluded.
Important Safety Notes
Read these notes before the first ride in the HKM-9845587.
The HKM-9845587 is a gas-powered dirt bike that reaches up to 50 mph (80 km/h), a pace that demands an experienced young rider and full adult attention. Read the manual before the first start, and treat rider readiness as an adult decision: this model suits riders stepping up from smaller machines, not first-time riders. A certified helmet, eye protection, gloves, boots and long pants belong on every ride. Ride only on private land or closed courses, never on public roads, and stay within the rated load with supervision. Check tire pressure, chain tension, brake action and engine oil before each session, and let the engine cool before refueling.
HKM-9845587 - gas-powered dirt bike with a 110 cc four-stroke engine, welded steel frame, telescopic front fork, rear coil spring shock, front and rear disc brakes, knobby off-road wheels, automatic clutch with chain final drive, pull starter, twist-grip throttle, white bodywork with flame graphics and a side stand. Read the manual before first use. Nothing here is safety certification advice.
Every product we offer includes a 180-day purchase protection plan at no additional cost. This coverage extends beyond a standard warranty, reflecting our confidence in product quality and our ongoing commitment to your satisfaction.
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Every part warranted for two full years.
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Step-by-step solutions for product issues.
Contact Information
24/7 Phone
+1 (209) 280-3200
support@hekomart.com
Address
3401 Dale Rd, Modesto, CA 95356
Support Hours
Available 24 hours a day, 7 days a week
