TL;DR
The FRP Moto FX140 and the Apollo RFZ 140 are the closest 1-vs-1 match in the 140cc pit bike class: both run hydraulic disc brakes front and rear, both roll on 17-inch front / 14-inch rear wheels, and both use a 4-speed manual clutch.
The FX140 ($1,149.99) runs an oil-cooled engine with electric start plus a kick backup, ships with a First Ride Kit, and is backed by a US-based 1-year limited warranty and direct parts support.
The Apollo RFZ 140 (dealer-listed at around $1,599) is a lighter, established air-cooled bike with a higher listed peak horsepower, but it is typically kick-start-only. If cooling consistency, easy starting, and US-based support matter most, the FX140 wins; if you want a proven lightweight air-cooled platform, the Apollo is a fair pick.
Direct Answer
For most riders choosing between these two, the FRP Moto FX140 is the stronger overall package because of three things you feel every ride: an oil-cooled engine that holds temperature better during long, low-speed trail sessions; electric start with a kick backup so you are not stranded when a hot engine gets stubborn; and a real US-based warranty with direct parts support instead of relying on a scattered dealer network.
The Apollo RFZ 140 is not a bad bike at all — it is a lighter, long-established air-cooled machine with the same hydraulic disc brakes and a slightly higher dealer-listed peak horsepower.
It comes down to what you value: the FX140 leads on cooling, starting, and support; the Apollo leads on weight and a longer track record in the aftermarket scene.
Shop the FX140 →FX140 vs Apollo RFZ 140: Head-to-Head
Apollo figures below are dealer-listed and vary by model year and seller (the RFZ 140 is also sold as the DB-Z40 and is related to the DB-X18 platform), pulled from retailer listings rather than a single factory spec sheet. FX140 figures are FRP Moto's own published specs.
| Spec | FRP Moto FX140 | Apollo RFZ 140 (dealer-listed) |
|---|---|---|
| Engine & cooling | 140cc 4-stroke, oil-cooled | 140cc single-cylinder 4-stroke, air-cooled |
| Power | ~8.7 hp @ 7000 rpm; 11 Nm @ 5500 rpm | ~11 hp @ 8000 rpm (dealer-listed) |
| Top speed | 65 mph | ~52 mph (dealer-listed) |
| Brakes | Hydraulic disc, front & rear | Hydraulic disc, front & rear |
| Start | Electric start + kick backup | Typically kick-only (varies by dealer/model year) |
| Seat height | ~33.9 in | ~32.5 in |
| Weight | 174 lb (net) | ~171 lb |
| Warranty / US support | 1-yr limited warranty + US-based direct parts support | Varies by dealer; no single unified US warranty channel |
| Price | $1,149.99 | ~$1,599 (dealer-listed) |
FRP Moto FX140: What Stands Out
The FX140 is FRP Moto's 140-class trail and pit bike, built around a 140cc oil-cooled 4-stroke that makes roughly 8.7 hp at 7000 rpm and 11 Nm of torque at 5500 rpm. Power runs through a 4-speed manual gearbox with a wet clutch and chain final drive. FRP lists a top speed of 65 mph, a range of about 155 miles on its 1.4-gallon tank, and a maximum rider load of 265 pounds. Net weight is 174 pounds, seat height sits at about 33.9 inches, and it rolls on a 17-inch front / 14-inch rear wheel setup with hydraulic disc brakes at both ends and long-travel suspension.
The two features that separate it from most air-cooled competitors are cooling and starting. Oil-cooling circulates oil to pull heat away from the head and cylinder, which helps the engine hold a steadier temperature during long, low-speed trail crawling, where an air-cooled motor gets the least airflow. Electric start with a kick backup means you thumb a button to fire it up, and still have the kick starter if the battery is ever flat. Every FX140 also ships as a First Ride Kit: gloves, goggles, anti-fog spray, a backpack, a hydration bladder, tools, and the manual are in the box, so a new rider is ready on day one.
Support is the other real edge. The FX140 carries a 1-year limited warranty and US-based direct parts support, and it ships within about 24 hours by FedEx to US addresses (not California, protectorates, or overseas). It runs on regular gas and is EPA off-road only — not street legal, and not sold in California. If you are cross-shopping the smaller sibling, the FX125 covers the 125cc class.
Apollo RFZ 140: What Stands Out
The Apollo RFZ 140 — also listed as the DB-Z40 and related to the widely-sold DB-X18 platform — is an established name in the entry pit bike space. It uses a 140cc single-cylinder 4-stroke that is air-cooled, with a dealer-listed peak of about 11 hp at 8000 rpm, paired to a 4-speed manual clutch. It is built on a twin-spar heavy-duty steel frame, uses hydraulic disc brakes front and rear, and rolls on the same 17-inch front / 14-inch rear wheel sizing as the FX140. Seat height comes in a touch lower at about 32.5 inches, and listed weight is around 171 pounds, making it slightly lighter than the FX140.
To be fair to Apollo: it is a proven, lightweight air-cooled option with real hydraulic disc brakes and a strong aftermarket presence, and its listed peak horsepower is higher on paper. Air-cooled engines are also mechanically simpler, with no oil cooler or extra lines to service. The trade-offs are that the start type is typically kick-only (this genuinely varies by dealer and model year, so confirm before you buy), the dealer-listed top speed is lower at around 52 mph, and support depends on whichever retailer sold it rather than one unified US warranty channel. Because Apollo bikes come through multiple sellers (retailers such as countryatvcycle, familygokarts, and tribalmotorsports), spec sheets and included extras differ from listing to listing — always verify the exact configuration you are ordering.
These two are the closest match in this class — both are hydraulic-disc, 17/14-inch, 4-speed 140s — so once you set price aside the deciding factors narrow to just two: cooling and starting. It is oil-cooled plus electric start (FX140) versus air-cooled plus kick (Apollo). Everything else is close enough that those two choices should drive your decision.
Which 140cc Pit Bike Should You Buy?
Choose the FX140 if you ride long trail sessions where heat builds, want to skip the kick-start ritual on a hot restart, value having gear in the box on day one, and want a US-based warranty with direct parts support you can actually call.
Choose the Apollo RFZ 140 if you specifically want a lighter, longer-established air-cooled platform, you are comfortable with kick-starting, and you already have a preferred Apollo dealer for parts and service.
Still deciding on displacement itself? Read 125cc vs 140cc: which to choose. If you want the FX140 measured against three rivals at once, see the FX140 vs SSR & Apollo 140 roundup, or step down a class with the FX125 vs Apollo DB-X18 125 comparison.
Shop the FX140 →FAQ
Is the FX140 oil-cooled or air-cooled?
The FX140 uses a 140cc oil-cooled 4-stroke engine. The Apollo RFZ 140 is air-cooled. Oil-cooling helps the FX140 hold a steadier temperature during long, low-speed trail riding, where an air-cooled engine gets the least airflow.
Does the Apollo RFZ 140 have an electric start?
Apollo RFZ 140 listings are typically kick-start only, though this varies by dealer and model year, so confirm before you buy. The FX140 comes with electric start plus a kick backup, so you can push-button start it and still have a kick starter if the battery is flat.
Which is faster, the FX140 or the Apollo RFZ 140?
FRP Moto lists a 65 mph top speed for the FX140. The Apollo RFZ 140 is dealer-listed at around 52 mph. Note the Apollo lists a higher peak horsepower (~11 hp) on paper, but real-world speed depends on gearing, rider weight, and terrain.
How much do they weigh, and how tall are the seats?
The FX140 has a net weight of 174 pounds and a seat height of about 33.9 inches. The Apollo RFZ 140 is dealer-listed at around 171 pounds with a seat height of 32.5 inches, making it slightly lighter with a marginally lower seat.
What warranty and support come with the FX140?
The FX140 includes a 1-year limited warranty with US-based direct parts support, and ships within about 24 hours by FedEx to US addresses (excluding California, protectorates, and overseas). Apollo support depends on the individual retailer that sold the bike rather than one unified US channel.
Shop the FX140: See full specs and order the FRP Moto FX140 140cc dirt bike, compare the FX125, or browse all FRP Moto dirt bikes.
