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§ 04 / Model

All GAS GAS parts

GAS GAS HALLEY 450 SM

Hooligan tarmac sled with stadium DNA. The Halley 450 SM thrives on warm rubber and abused brake pads — front discs cook, fork seals weep, chain stretches fast under big-bore torque. Stock the consumables now. Stickier 17-inch hoops, oversize wave rotor, braided lines, beefier sprocket set, fresh seals and sliders. Build it for late braking and longer back wheels. Parts here fit your bike.

76 parts fit this bike

// Parts

All 76 parts

WISECO CIRCLIP 20MM

WISECO

CW20 CIRCLIP 20MM

£2.24 £2.64
WOSSNER PISTON CIRCLIPS / 20 MM

WOSSNER

09130252 PISTON CIRCLIPS / 20 MM

£2.55 £3.00
PROX CHAIN LINK MX

PROX

12310893 CHAIN LINK MX

£5.57 £6.55
PROX CHAIN LINK MX GOLD

PROX

12310894 CHAIN LINK MX GOLD

£5.59 £6.58
PROX CHAIN LINK X-RING GOLD

PROX

12310897 CHAIN LINK X-RING GOLD

£6.49 £7.64
PROX CHAIN LINK MX GOLD

PROX

12310896 CHAIN LINK MX GOLD

£6.53 £7.68
PROX CHAIN LINK X-RING

PROX

12310895 CHAIN LINK X-RING

£6.53 £7.68
TWIN AIR BACKFIRE AIR FILTER

TWIN AIR

10112462 BACKFIRE AIR FILTER

£15.01 £17.66
GALFER BRAKE PAD SEMI METALLIC SCOOTER

GALFER

17213514 BRAKE PAD SEMI METALLIC SCOOTER

£15.31 £18.01
MOOSE OFFROAD HARD-PARTS CHAIN ROLLER BLACK

MOOSE OFFROAD HARD-PARTS

12310036 CHAIN ROLLER BLACK

£16.29 £19.16
MOOSE OFFROAD HARD-PARTS CHAIN ROLLER BLACK

MOOSE OFFROAD HARD-PARTS

M79500 CHAIN ROLLER BLACK

£16.29 £19.16
WOSSNER REPLACEMENT PIN

WOSSNER

09130262 REPLACEMENT PIN

£18.14 £21.34
TWIN AIR PRE-OILED BACKFIRE AIR FILTER

TWIN AIR

10113616 PRE-OILED BACKFIRE AIR FILTER

£18.17 £21.38
TWIN AIR AIRBOX COVER

TWIN AIR

10112426 AIRBOX COVER

£18.33 £21.56
EBC BRAKE PAD FA-TT SERIES CARBON FIBER OFFROAD

EBC

17220262 BRAKE PAD FA-TT SERIES CARBON FIBER OFFROAD

£18.55 £21.82
EBC BRAKE PAD FA-TT SERIES CARBON FIBER

EBC

FA131X BRAKE PAD FA-TT SERIES CARBON FIBER

£18.56 £21.84
MOOSE OFFROAD HARD-PARTS REAR SPROCKET / 50 TEETH / 520 PITCH / BLACK / STEEL

MOOSE OFFROAD HARD-PARTS

12101736 REAR SPROCKET / 50 TEETH / 520 PITCH / BLACK / STEEL

£19.01 £22.37
MOOSE OFFROAD HARD-PARTS QUALIFIER BRAKE PADS ORGANIC

MOOSE OFFROAD HARD-PARTS

17200224 QUALIFIER BRAKE PADS ORGANIC

£19.24 £22.64
MOOSE OFFROAD HARD-PARTS BRAKE PAD XCR SINTERED

MOOSE OFFROAD HARD-PARTS

M815S47 BRAKE PAD XCR SINTERED

£22.48 £26.45
MOOSE OFFROAD HARD-PARTS REAR SPROCKET / 52 TEETH / 520 PITCH / BLACK / STEEL

MOOSE OFFROAD HARD-PARTS

12101738 REAR SPROCKET / 52 TEETH / 520 PITCH / BLACK / STEEL

£22.59 £26.58
GALFER BRAKE PAD SEMI METAL

GALFER

17213538 BRAKE PAD SEMI METAL

£22.86 £26.89
MOOSE OFFROAD HARD-PARTS REAR SPROCKET / 49 TEETH / 520 PITCH / BLACK / STEEL

MOOSE OFFROAD HARD-PARTS

12101735 REAR SPROCKET / 49 TEETH / 520 PITCH / BLACK / STEEL

£23.43 £27.56
MOOSE OFFROAD HARD-PARTS REAR SPROCKET / 51 TEETH / 520 PITCH / BLACK / STEEL

MOOSE OFFROAD HARD-PARTS

12101737 REAR SPROCKET / 51 TEETH / 520 PITCH / BLACK / STEEL

£23.43 £27.56
MOOSE OFFROAD HARD-PARTS REAR SPROCKET / 48 TEETH / 520 PITCH / BLACK / STEEL

MOOSE OFFROAD HARD-PARTS

12101734 REAR SPROCKET / 48 TEETH / 520 PITCH / BLACK / STEEL

£23.47 £27.61
EBC BRAKE PAD FA-R SERIES SINTERED METAL

EBC

FA131R BRAKE PAD FA-R SERIES SINTERED METAL

£24.29 £28.58
EBC BRAKE PAD FA-R SERIES SINTERED METAL

EBC

FA185R BRAKE PAD FA-R SERIES SINTERED METAL

£24.39 £28.69
RENTHAL SPROCKET F 520 12T

RENTHAL

12121651 SPROCKET F 520 12T

£25.26 £29.72
MOOSE OFFROAD HARD-PARTS WHEEL BEARING AND SEAL KIT

MOOSE OFFROAD HARD-PARTS

A251079 WHEEL BEARING AND SEAL KIT

£25.36 £29.84
RENTHAL SPROCKET F 520 13T SC

RENTHAL

12121639 SPROCKET F 520 13T SC

£26.83 £31.56
MOOSE OFFROAD HARD-PARTS REAR SPROCKET 49 TEETH ALUMINIUM SILVER

MOOSE OFFROAD HARD-PARTS

12111539 REAR SPROCKET 49 TEETH ALUMINIUM SILVER

£27.12 £31.91
MOOSE OFFROAD HARD-PARTS REAR SPROCKET 42 TEETH ALUMINIUM BLACK

MOOSE OFFROAD HARD-PARTS

12111434 REAR SPROCKET 42 TEETH ALUMINIUM BLACK

£27.18 £31.98
MOOSE OFFROAD HARD-PARTS REAR SPROCKET 49 TEETH ALUMINIUM BLACK

MOOSE OFFROAD HARD-PARTS

12111441 REAR SPROCKET 49 TEETH ALUMINIUM BLACK

£28.03 £32.98
MOOSE OFFROAD HARD-PARTS REAR SPROCKET 49 TEETH ALUMINIUM RED

MOOSE OFFROAD HARD-PARTS

12111651 REAR SPROCKET 49 TEETH ALUMINIUM RED

£28.08 £33.04
MOOSE OFFROAD HARD-PARTS REAR SPROCKET 51 TEETH ALUMINIUM BLACK

MOOSE OFFROAD HARD-PARTS

12111443 REAR SPROCKET 51 TEETH ALUMINIUM BLACK

£28.08 £33.04
MOOSE OFFROAD HARD-PARTS REAR SPROCKET 51 TEETH ALUMINIUM RED

MOOSE OFFROAD HARD-PARTS

12111653 REAR SPROCKET 51 TEETH ALUMINIUM RED

£28.08 £33.04
MOOSE OFFROAD HARD-PARTS FORK AND DUST SEAL KIT 45MM

MOOSE OFFROAD HARD-PARTS

04070104 FORK AND DUST SEAL KIT 45MM

£29.84 £35.10
GALFER BRAKE PAD SINTER

GALFER

17213202 BRAKE PAD SINTER

£30.23 £35.57
MOOSE OFFROAD HARD-PARTS REAR SPROCKET 41 TEETH ALUMINIUM BLACK

MOOSE OFFROAD HARD-PARTS

12111433 REAR SPROCKET 41 TEETH ALUMINIUM BLACK

£31.71 £37.31
MOOSE OFFROAD HARD-PARTS REAR SPROCKET 45 TEETH ALUMINIUM RED

MOOSE OFFROAD HARD-PARTS

12111647 REAR SPROCKET 45 TEETH ALUMINIUM RED

£31.71 £37.31
MOOSE OFFROAD HARD-PARTS REAR SPROCKET / 46 TEETH / 520 PITCH / BLUE / ALUMINUM

MOOSE OFFROAD HARD-PARTS

12111903 REAR SPROCKET / 46 TEETH / 520 PITCH / BLUE / ALUMINUM

£31.76 £37.37
MOOSE OFFROAD HARD-PARTS REAR SPROCKET 50 TEETH ALUMINIUM SILVER

MOOSE OFFROAD HARD-PARTS

12111540 REAR SPROCKET 50 TEETH ALUMINIUM SILVER

£33.52 £39.44
MOOSE OFFROAD HARD-PARTS REAR SPROCKET 50 TEETH ALUMINIUM BLACK

MOOSE OFFROAD HARD-PARTS

12111442 REAR SPROCKET 50 TEETH ALUMINIUM BLACK

£33.65 £39.59
MOOSE OFFROAD HARD-PARTS REAR SPROCKET / 48 TEETH / 520 PITCH / BLUE / ALUMINUM

MOOSE OFFROAD HARD-PARTS

12111905 REAR SPROCKET / 48 TEETH / 520 PITCH / BLUE / ALUMINUM

£34.44 £40.52
MOOSE OFFROAD HARD-PARTS REAR SPROCKET 45 TEETH ALUMINIUM BLACK

MOOSE OFFROAD HARD-PARTS

12111437 REAR SPROCKET 45 TEETH ALUMINIUM BLACK

£34.44 £40.52
MOOSE OFFROAD HARD-PARTS REAR SPROCKET 48 TEETH ALUMINIUM RED

MOOSE OFFROAD HARD-PARTS

12111650 REAR SPROCKET 48 TEETH ALUMINIUM RED

£34.44 £40.52
MOOSE OFFROAD HARD-PARTS REAR SPROCKET 48 TEETH ALUMINIUM SILVER

MOOSE OFFROAD HARD-PARTS

12111538 REAR SPROCKET 48 TEETH ALUMINIUM SILVER

£34.44 £40.52
MOOSE OFFROAD HARD-PARTS REAR SPROCKET 50 TEETH ALUMINIUM RED

MOOSE OFFROAD HARD-PARTS

12111652 REAR SPROCKET 50 TEETH ALUMINIUM RED

£34.44 £40.52
MOOSE OFFROAD HARD-PARTS REAR SPROCKET 52 TEETH ALUMINIUM BLACK

MOOSE OFFROAD HARD-PARTS

12111444 REAR SPROCKET 52 TEETH ALUMINIUM BLACK

£34.44 £40.52
MOOSE OFFROAD HARD-PARTS REAR SPROCKET 48 TEETH ALUMINIUM BLACK

MOOSE OFFROAD HARD-PARTS

12111440 REAR SPROCKET 48 TEETH ALUMINIUM BLACK

£34.54 £40.63
MOOSE OFFROAD HARD-PARTS REAR SPROCKET / 50 TEETH / 520 PITCH / BLUE / ALUMINUM

MOOSE OFFROAD HARD-PARTS

12111907 REAR SPROCKET / 50 TEETH / 520 PITCH / BLUE / ALUMINUM

£34.57 £40.67
WOSSNER REPLACEMENT 4-STROKE PISTON RING SET

WOSSNER

09120688 REPLACEMENT 4-STROKE PISTON RING SET

£39.64 £46.64
EBC BRAKE PAD MXS-SERIES SINTERED METAL

EBC

MXS185 BRAKE PAD MXS-SERIES SINTERED METAL

£40.89 £48.11
MOOSE OFFROAD HARD-PARTS REAR SPROCKET / 48 TEETH / 520 PITCH / BLACK/NATURAL / ALUMINIUM/STEEL

MOOSE OFFROAD HARD-PARTS

12101508 REAR SPROCKET / 48 TEETH / 520 PITCH / BLACK/NATURAL / ALUMINIUM/STEEL

£42.65 £50.18
MOOSE OFFROAD HARD-PARTS REAR SPROCKET / 49 TEETH / 520 PITCH / SILVER/NATURAL / ALUMINIUM/STEEL

MOOSE OFFROAD HARD-PARTS

12101511 REAR SPROCKET / 49 TEETH / 520 PITCH / SILVER/NATURAL / ALUMINIUM/STEEL

£43.29 £50.93
FACTORY LINKS STEERING STEM BEARING KT

FACTORY LINKS

04010110 STEERING STEM BEARING KT

£45.73 £53.80
RENTHAL SPROCK R 520 46T SI UL SC

RENTHAL

12112528 SPROCK R 520 46T SI UL SC

£46.62 £54.85
RENTHAL SPROCK R 520 47T SI UL SC

RENTHAL

12111139 SPROCK R 520 47T SI UL SC

£50.54 £59.46
RENTHAL SPROCK R 520 50T SI UL SC

RENTHAL

12111142 SPROCK R 520 50T SI UL SC

£50.54 £59.46
RENTHAL SPROCK R 520 49T SI UL SC

RENTHAL

12111141 SPROCK R 520 49T SI UL SC

£50.64 £59.58
RENTHAL SPROCK R 520 51T SI UL SC

RENTHAL

12111143 SPROCK R 520 51T SI UL SC

£50.64 £59.58
RENTHAL SPROCK R 520 48T SI UL SC

RENTHAL

12111140 SPROCK R 520 48T SI UL SC

£50.70 £59.65
MOOSE OFFROAD HARD-PARTS REAR SPROCKET / 48 TEETH / 520 PITCH / BLUE|NATURAL / ALUMINUM|STEEL

MOOSE OFFROAD HARD-PARTS

12101824 REAR SPROCKET / 48 TEETH / 520 PITCH / BLUE|NATURAL / ALUMINUM|STEEL

£52.59 £61.87
MOOSE OFFROAD HARD-PARTS REAR SPROCKET / 48 TEETH / 520 PITCH / RED/NATURAL / ALUMINIUM/STEEL

MOOSE OFFROAD HARD-PARTS

12101534 REAR SPROCKET / 48 TEETH / 520 PITCH / RED/NATURAL / ALUMINIUM/STEEL

£52.59 £61.87
MOOSE OFFROAD HARD-PARTS REAR SPROCKET / 49 TEETH / 520 PITCH / RED/NATURAL / ALUMINIUM/STEEL

MOOSE OFFROAD HARD-PARTS

12101535 REAR SPROCKET / 49 TEETH / 520 PITCH / RED/NATURAL / ALUMINIUM/STEEL

£52.59 £61.87
MOOSE OFFROAD HARD-PARTS REAR SPROCKET / 50 TEETH / 520 PITCH / BLUE|NATURAL / ALUMINUM|STEEL

MOOSE OFFROAD HARD-PARTS

12101826 REAR SPROCKET / 50 TEETH / 520 PITCH / BLUE|NATURAL / ALUMINUM|STEEL

£52.59 £61.87
MOOSE OFFROAD HARD-PARTS REAR SPROCKET / 50 TEETH / 520 PITCH / RED/NATURAL / ALUMINIUM/STEEL

MOOSE OFFROAD HARD-PARTS

12101536 REAR SPROCKET / 50 TEETH / 520 PITCH / RED/NATURAL / ALUMINIUM/STEEL

£52.59 £61.87
RENTHAL SPROCK R 520 52T SI UL SC

RENTHAL

12111144 SPROCK R 520 52T SI UL SC

£54.68 £64.33
EBC BRAKE PAD EPFA-HH SERIES SINTERED METAL

EBC

17210845 BRAKE PAD EPFA-HH SERIES SINTERED METAL

£59.97 £70.55
PROX CAM CHAIN 82RH2010-128M

PROX

09250388 CAM CHAIN 82RH2010-128M

£63.78 £75.04
GALFER BRAKE ROTOR FIXED WAVE

GALFER

17111755 BRAKE ROTOR FIXED WAVE

£71.62 £84.26
MOOSE OFFROAD HARD-PARTS FORK GUARD BLACK

MOOSE OFFROAD HARD-PARTS

04120163 FORK GUARD BLACK

£72.20 £84.94
PROX DRIVE CHAIN MX

PROX

12310889 DRIVE CHAIN MX

£73.70 £86.70
GALFER BRAKE ROTOR FIXED WAVE

GALFER

17111754 BRAKE ROTOR FIXED WAVE

£76.87 £90.44
PROX DRIVE CHAIN MX GOLD

PROX

12310890 DRIVE CHAIN MX GOLD

£78.18 £91.98
PROX DRIVE CHAIN X-RING

PROX

12310891 DRIVE CHAIN X-RING

£93.19 £109.63
PROX DRIVE CHAIN X-RING GOLD

PROX

12310892 DRIVE CHAIN X-RING GOLD

£95.56 £112.42

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Free UK shipping over £100 ✦ 14-day no-quibble returns ✦ OEM-grade parts only ✦ UK-based support · 9 to 5 ✦ Race-shop prices, paddock service ✦ Click & collect from Leeds ✦
Free UK shipping over £100 ✦ 14-day no-quibble returns ✦ OEM-grade parts only ✦ UK-based support · 9 to 5 ✦ Race-shop prices, paddock service ✦ Click & collect from Leeds ✦