140cc RFN Thunder Dirt Bike - XL Wheel - 19"/16"
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Product Overview
The RFN 140cc dirt bike replaces it's well established and proven RFZ racing predecessor.
The RFN 140 features a genuine YX 140cc engine with an upgrade to electric start as well as kick start back up. Another unique feature and a first for this category are the XL 19" front and 16" rear wheels, something that proved to be very popular with the RXF brand of bikes.
All in all, we are confident that no other established brand of dirt bike on the market at this price point offers a spec nor finish quality to match this stunning bike.
Key Features -
- Genuine YX 140cc engine - Electric start
- Manual 4 speed transmission (N-1-2-3-4)
- Front & rear hydraulic brakes with wavy discs
- Latest technology tubular & profiled frame
- 19” Front & 16” Rear wheels with rimlocks
- VOLT™ V-ONE front & rear suspension
- Aluminium sports exhaust system
- Seat height = 89cm
General Specifications
| WEIGHT | 93KG |
|---|---|
| SEAT HEIGHT | 890MM |
| WHEELBASE | 1260MM (+/- 10MM) |
| GROUND CLEARANCE | 360MM |
| FRONT SUSPENSION | VOLT V-1 810MM |
| REAR SUSPENSION | VOLT V-1 350MM |
| SWING ARM | HIGH STRENGTH STEEL WITH NEEDLE CAGE |
| FRONT BRAKE | HYDRAULIC PISTON - 220MM VENTILATED WAVY DISC |
| REAR BRAKE | HYDRAULIC PISTON - 190MM VENTILATED WAVY DISC |
| FRONT / REAR WHEEL | 19" / 16" HIGH STRENGTH STEEL (WITH RIMLOCK) |
| FRONT / REAR TYRE | 70/100-19" / 90/100-16" - OFFROAD TYRE |
| SEAT | GRIPPY - COLOUR CODED |
| HANDLE BAR / CLAMPS | STEEL - FAT BAR / FORGED ALLOY |
| GRIPS | APOLLO |
| FRAME | STEEL PROFILED 35MM OVERSIZE TWIN TUBULAR |
| MAX RIDER WEIGHT | 95KG |
Engine & Transmission Specifications
| ENGINE | 140CC - LEADING YX BRAND |
|---|---|
| TRANSMISSION | 4 GEARS (N-1-2-3-4) |
| ENGINE TYPE | 4 STROKE - SINGLE CYLINDER - ELECTRIC START |
| BORE X STROKE | 56 X 57MM |
| OIL CAPACITY | 900ML (15W/30) |
| CARBURETOR | NIBBI PE22 (22MM) |
| CLUTCH | WET CLUTCH - MULTI PLATE |
| IGNITION | CDI |
| CHAIN | 428-114 |
| REAR SPROCKET | 41 TEETH (428) |
| FRONT SPROCKET | 14 TEETH (428) |
| EXHAUST | ALLOY - SPORTS STYLE |
| FUEL TANK | 5.3L |
| BATTERY | 12V 6AH GEL BATTERY |
| TOP SPEED | 50+ MPH |
Why Buy From MotoX1?
MotoX1 is a trusted UK supplier of kids electric bikes, off-road products, ATVs, vehicles and accessories. We focus on quality products, honest advice and friendly support before and after purchase.
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Frequently Asked Questions
Do you offer delivery?
Yes, nationwide delivery options are available on most products.
Can I contact MotoX1 before ordering?
Absolutely — we are happy to help with sizing, compatibility or product advice.
Do products come assembled?
Some products may require minor assembly or setup before use.
Do you offer support after purchase?
Yes — MotoX1 provides UK support and assistance after purchase where needed.