Finance Available when Spending Over £300 T&C's - Open 7 Days a Week!
Warehouse DealsSales & Customer Services: 01664 498 640
Free Technical Support: 01664 498 640
TELS
- Sales & Customer Services: 01664 498 640
- Free Technical Support: 01664 498 642
SPARES
- Buggy Spares
- Drift Go Kart Spares
- FunKart Go Kart Spares
- Mini Dirt Bike Spares
- Mini Moto Spares
- Mini Quad Spares
- Monkey Bike Spares
- Pit Bike Spares
- Powerboard Spares
- Quad Bike Spares
- Super Motard Spares
Engine Parts
At Fun Bikes we have a great range of mini moto pistons, rings, cylinder heads and cranks for your mini dirt bike. Whether you want to replace or repair a part, we have everything you need right here.
SPECIAL OFFER
Mini Moto, Quad, Motard, Dirt Bike High Performance Head Kit Silver
Mini Moto, Quad, Motard, Dirt Bike High Performance Head KitConvert any 47cc or 49cc engine with this complete upgrade kit. Beautiful 2 piece chrome head 1 Brass head gasket (two are shown which i...
Now only £39.00
SPARES
- Buggy Spares
- Drift Go Kart Spares
- FunKart Go Kart Spares
- Mini Dirt Bike Spares
- Mini Moto Spares
- Mini Quad Spares
- Monkey Bike Spares
- Pit Bike Spares
- Powerboard Spares
- Quad Bike Spares
- Super Motard Spares
Mini Moto, Quad, Motard, Dirt Bike High Performance Head Kit Silver
FUN:BIKES
Mini Moto, Quad, Motard, Dirt Bike High Performance Head Kit Convert any 47cc or 49cc engine with this complete upgrade kit.
Beautiful 2 piece chrome head
1 Brass head gasket (two are shown which is incorrect)
2 New piston rings
2 New piston cir clips
New small end bearing
New wrist pin
New base gasket
NGK spark plug
Full circle crank = Less vibration
Increased torque throughout entire rev range
Revs at approximately 3000 RPM higher than standard engine.
Doubles Engine power - REPEAT - Doubles engine power!!!!
Lovely smooth running with a really fruity full-on sports sound! THE BEST MOD FOR ANY MINI MOTO POCKET BIKE WE HAVE FOUND SO FAR!
https://www.funbikes.co.uk/p9328_mini-moto-high-performance-head-kit
PCC3D018
SAVE UPTO 20%
https://www.funbikes.co.uk/upload/temp/fb8737ff-ef28-4eb2-8e5c-c29cfad9fa74_pad_600x600.jpg
![Mini Moto, Quad, Motard, Dirt Bike High Performance Head Kit Silver]()
£48.00
39
GBP
£39.00
OutOfStock
Mini Moto, Quad, Motard, Dirt Bike High Performance Head Kit Gold
FUN:BIKES
Mini Moto, Quad, Motard, Dirt Bike High Performance Head Kit Convert any 47cc or 49cc engine with this complete upgrade kit.
Beautiful 2 piece chrome head
1 Brass head gasket (two are shown which is incorrect)
2 New piston rings
2 New piston cir clips
New small end bearing
New wrist pin
New base gasket
NGK spark plug
Full circle crank = Less vibration
Increased torque throughout entire rev range
Revs at approximately 3000 RPM higher than standard engine.
Doubles Engine power - REPEAT - Doubles engine power!!!!
Lovely smooth running with a really fruity full-on sports sound! THE BEST MOD FOR ANY MINI MOTO POCKET BIKE WE HAVE FOUND SO FAR!
https://www.funbikes.co.uk/p9315_mini-moto-high-performance-head-kit
PC34B353
SAVE UPTO 20%
https://www.funbikes.co.uk/upload/temp/824929a6-68dd-4488-8030-4a31149fe935_pad_600x600.jpg
![Mini Moto, Quad, Motard, Dirt Bike High Performance Head Kit Gold]()
£48.00
39
GBP
£39.00
OutOfStock
Cobra 4S Engine Casing RHS
FUN:BIKES
Cobra 4S Engine Casing RHS
https://www.funbikes.co.uk/p5863_cobra-4s-engine-casing-rhs
PC4E3A69
https://www.funbikes.co.uk/upload/temp/f94710b9-4097-4428-ad79-a8b297223b1b_pad_600x600.jpg
![Cobra 4S Engine Casing RHS]()
30
GBP
£30.00
InStock
Cobra 4s Mini Dirt Bike Sprocket Cover
FUN:BIKES
C obra 4s Mini Dirt Bike Sprocket Cover
For the four stroke single cylinder engine only.
https://www.funbikes.co.uk/p5446_cobra-4s-mini-dirt-bike-sprocket-cover
PCDF08C2
https://www.funbikes.co.uk/upload/temp/717c6dfa-5276-4d00-8c36-863a9d7b0ee6_pad_600x600.jpg
![Cobra 4s Mini Dirt Bike Sprocket Cover]()
https://www.funbikes.co.uk/upload/temp/be571826-45c5-4b93-85f7-8005d319b7c4_pad_600x600.jpg
![Cobra 4s Mini Dirt Bike Sprocket Cover]()
8.4
GBP
£8.40
InStock
Cobra 4s Mini Dirt Bike Piston & Ring Kit
FUN:BIKES
Cobra 4s Piston & Ring Kit
For the four stroke single cylinder engine only.
Kits consists of piston, piston rings, grudgin pin and retaining clips.
Piston is 43.5mm in diameter.
https://www.funbikes.co.uk/p5410_cobra-4s-mini-dirt-bike-piston-ring-kit
PCE89893
https://www.funbikes.co.uk/upload/temp/41a0d998-d956-48f8-bf53-ec7d34da4134_pad_600x600.jpg
![Cobra 4s Mini Dirt Bike Piston & Ring Kit]()
21.6
GBP
£21.60
InStock
Funbikes Cobra 4S Dirt Bike CDI
FUN:BIKES
Funbikes Cobra 4S Dirt Bike CDI
Capacitor discharge ignition unit.
Part number 13
https://www.funbikes.co.uk/p4923_funbikes-cobra-4s-dirt-bike-cdi
DB706B-108
https://www.funbikes.co.uk/upload/temp/43e734eb-405b-4072-99ab-195b93e829d9_pad_600x600.jpg
![Funbikes Cobra 4S Dirt Bike CDI]()
https://www.funbikes.co.uk/upload/temp/bf87893b-24be-4c0c-86e0-ca23814f7646_pad_600x600.jpg
![Funbikes Cobra 4S Dirt Bike CDI]()
16.8
GBP
£16.80
InStock
Mini Moto, Quad, Motard, Dirt Bike Engine Casings / Crank Cases
FUN:BIKES
Mini Moto, Quad, Motard, Dirt Bike Engine Casings / Crank Cases
https://www.funbikes.co.uk/p1840_mini-moto-engine-casings-crank-cases
PC1B5A78
https://www.funbikes.co.uk/upload/temp/d5a6769a-f2a0-459e-b734-2a6beb7e7d3dcasings2_pad_600x600.jpg
![Mini Moto, Quad, Motard, Dirt Bike Engine Casings / Crank Cases]()
https://www.funbikes.co.uk/upload/temp/6750fc36-138e-483e-8353-08d410d60d39casings3_pad_600x600.jpg
![Mini Moto, Quad, Motard, Dirt Bike Engine Casings / Crank Cases]()
https://www.funbikes.co.uk/upload/temp/e8f7fe3b-0704-40e6-813e-350d7c220b7acasings4_pad_600x600.jpg
![Mini Moto, Quad, Motard, Dirt Bike Engine Casings / Crank Cases]()
16
GBP
£16.00
InStock
Mini Moto, Quad, Motard, Dirt Bike High Performance Head Kit Red
FUN:BIKES
Mini Moto, Quad, Motard, Dirt Bike High Performance Head Kit Convert any 47cc or 49cc engine with this complete upgrade kit.
Beautiful 2 piece chrome head
2 Brass head gaskets
2 New piston rings
2 New piston cir clips
New small end bearing
New wrist pin
New base gasket
NGK spark plug
Full circle crank = Less vibration
Increased torque throughout entire rev range
Revs at approximately 3000 RPM higher than standard engine.
Doubles Engine power - REPEAT - Doubles engine power!!!!
Lovely smooth running with a really fruity full-on sports sound! THE BEST MOD FOR ANY MINI MOTO POCKET BIKE WE HAVE FOUND SO FAR!
https://www.funbikes.co.uk/p1229_mini-moto-high-performance-head-kit
PC4836A5
SAVE UPTO 30%
https://www.funbikes.co.uk/upload/temp/96c8e689-f832-4118-ae4e-88e6376a0f4b_pad_600x600.jpg
![Mini Moto, Quad, Motard, Dirt Bike High Performance Head Kit Red]()
£48.00
36
GBP
£36.00
OutOfStock
Mini Moto, Quad, Motard, Dirt Bike Full Circle Crank 49cc
FUN:BIKES
Mini Moto, Quad, Motard, Dirt Bike Full Circle Crank 49cc
The advantages of fitting a full circle crank are increased torque throughout the rev range and the engines will vibrate a lot less, which makes the engine smoother.
Definitely a mod worth doing.
https://www.funbikes.co.uk/p1228_mini-moto-full-circle-crank-49cc
PC053FF0
https://www.funbikes.co.uk/upload/temp/303c17fb-fd5e-4876-b91f-15bcc6a358a3crank-fc-mini_pad_600x600.jpg
![Mini Moto, Quad, Motard, Dirt Bike Full Circle Crank 49cc]()
15.35
GBP
£15.35
InStock
Mini Moto, Quad, Motard, Dirt Bike Small End Kit - 49cc
FUN:BIKES
Mini Moto, Quad, Motard, Dirt Bike Small End Kit - 49cc Includes
Small end bearing
Needle/wrist pin
Clips
https://www.funbikes.co.uk/p1227_mini-moto-small-end-kit-49cc
PC3F6EF7
https://www.funbikes.co.uk/upload/temp/4ad1790a-e4e9-42b4-8e74-cf7610137e27_pad_600x600.jpg
![Mini Moto, Quad, Motard, Dirt Bike Small End Kit - 49cc]()
3.98
GBP
£3.98
InStock
Mini Moto, Quad, Motard, Dirt Bike Cylinder Head Barrel 49cc
FUN:BIKES
Mini Moto, Quad, Motard, Dirt Bike Cylinder Head Barrel49cc
2 Stroke 49cc mini moto engines
44mm Width
https://www.funbikes.co.uk/p1221_mini-moto-cylinder-head-barrel-49cc
PCFC70F4
https://www.funbikes.co.uk/upload/temp/4a87fafc-bfb8-49bd-9c8f-267c48b99972head1_pad_600x600.jpg
![Mini Moto, Quad, Motard, Dirt Bike Cylinder Head Barrel 49cc]()
https://www.funbikes.co.uk/upload/temp/ddb22562-81f0-4e16-8fca-ef5cf080a1c9head2_pad_600x600.jpg
![Mini Moto, Quad, Motard, Dirt Bike Cylinder Head Barrel 49cc]()
https://www.funbikes.co.uk/upload/temp/02bf45be-b202-41d6-b5da-6bb527e2c3abhead3_pad_600x600.jpg
![Mini Moto, Quad, Motard, Dirt Bike Cylinder Head Barrel 49cc]()
11.22
GBP
£11.22
InStock
Mini Moto, Quad, Motard, Dirt Bike Piston Rings 49cc
FUN:BIKES
Mini Moto, Quad, Motard, Dirt Bike Piston Rings 49cc
Fits piston with 44mm width
Set of two rings
https://www.funbikes.co.uk/p1220_mini-moto-piston-rings-49cc
PCADB7EB
https://www.funbikes.co.uk/upload/temp/a73f1679-1aa6-4e2e-a03a-5b8e117c7bffpiston-rings-49cc_pad_600x600.jpg
![Mini Moto, Quad, Motard, Dirt Bike Piston Rings 49cc]()
3.6
GBP
£3.60
OutOfStock
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