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§ 04 / Model

All BETA parts

BETA RS 390

The RS 390 wants to do two jobs. Keep it honest off-road and the cooling system needs eyes on it, especially when you're picking through slow technical stuff and the fan starts cycling. Mirrors and indicators tend to be the first casualties once you leave the tarmac, so keep spares to hand. Filter below by category, brand or price to find what fits.

118 parts fit this bike

// Parts

All 118 parts

Moose Offroad SPOKE INDIVIDUAL STEEL 21"

Moose Offroad

02110092 SPOKE INDIVIDUAL STEEL 21"

£3.24 RRP £4.16
Moose Offroad SPOKE INDIVIDUAL MX1

Moose Offroad

02110217 SPOKE INDIVIDUAL MX1

£3.46 RRP £4.43
TWIN AIR TWIN AIR OIL FILTER

TWIN AIR

07120498 TWIN AIR OIL FILTER

£6.82 RRP £8.02
K & N OIL FIL BETA

K & N

07120656 OIL FIL BETA

£6.48 RRP £8.10
JT SPROCKETS JTF1901.11 FRONT REPLACEMENT SPROCKET 11 TEETH 520 PITCH NATURAL SCM420 CHROMOLY STEEL ALLOY

JT SPROCKETS

12121152 JTF1901.11 FRONT REPLACEMENT SPROCKET 11 TEETH 520 PITCH NATURAL SCM420 CHROMOLY STEEL ALLOY

£7.71 RRP £9.64
JT SPROCKETS JTF1901.12 FRONT REPLACEMENT SPROCKET 12 TEETH 520 PITCH NATURAL STEEL

JT SPROCKETS

JTF190112 JTF1901.12 FRONT REPLACEMENT SPROCKET 12 TEETH 520 PITCH NATURAL STEEL

£8.20 RRP £10.25
JT SPROCKETS SPROCKET FRONT 14T 525

JT SPROCKETS

12122301 SPROCKET FRONT 14T 525

£8.83 RRP £11.04
JT SPROCKETS SPROCKET FRONT 13T 530

JT SPROCKETS

12122300 SPROCKET FRONT 13T 530

£8.97 RRP £11.21
MOTION PRO ALLOY RIM LOCK 1.60

MOTION PRO

P600 ALLOY RIM LOCK 1.60

£10.35 RRP £12.94
MOTION PRO ALLOY RIM LOCK 2.15

MOTION PRO

P602 ALLOY RIM LOCK 2.15

£10.50 RRP £13.12
JT SPROCKETS JTF1901.13SC FRONT SELF CLEANING SPROCKET 13 TEETH 520 PITCH NATURAL STEEL

JT SPROCKETS

12120513 JTF1901.13SC FRONT SELF CLEANING SPROCKET 13 TEETH 520 PITCH NATURAL STEEL

£10.83 RRP £13.54
JT SPROCKETS JTF1901.14SC FRONT SELF CLEANING SPROCKET 14 TEETH 520 PITCH NATURAL STEEL

JT SPROCKETS

12120514 JTF1901.14SC FRONT SELF CLEANING SPROCKET 14 TEETH 520 PITCH NATURAL STEEL

£11.14 RRP £13.93
JT SPROCKETS JTF1901.15SC FRONT SELF CLEANING SPROCKET 15 TEETH 520 PITCH NATURAL CHROMOLY STEEL ALLOY

JT SPROCKETS

12120775 JTF1901.15SC FRONT SELF CLEANING SPROCKET 15 TEETH 520 PITCH NATURAL CHROMOLY STEEL ALLOY

£11.27 RRP £14.09
JT SPROCKETS JTF1901.16SC FRONT SELF CLEANING SPROCKET 16 TEETH 520 PITCH NATURAL SCM420 CHROMOLY STEEL ALLOY

JT SPROCKETS

12121153 JTF1901.16SC FRONT SELF CLEANING SPROCKET 16 TEETH 520 PITCH NATURAL SCM420 CHROMOLY STEEL ALLOY

£11.46 RRP £14.32
Moose Offroad FRONT SPROCKET - HUSQVARNA/HUSABERG- 13 T

Moose Offroad

12122217 FRONT SPROCKET - HUSQVARNA/HUSABERG- 13 T

£12.25 RRP £15.71
Moose Offroad FRONT SPROCKET - KTM/HUSQVARNA - 16 T

Moose Offroad

12122220 FRONT SPROCKET - KTM/HUSQVARNA - 16 T

£12.25 RRP £15.71
Moose Offroad FRONT SPROCKET - KTM/HUSQVARNA/POLARIS- 14 T

Moose Offroad

12122218 FRONT SPROCKET - KTM/HUSQVARNA/POLARIS- 14 T

£12.51 RRP £16.04
Twin Air Standard Air Filter 10113015 for Selected Beta Models

TWIN AIR

Twin Air Standard Air Filter 10113015 for Selected Beta Models

£14.58 RRP £17.15
MOTION PRO LEVER OE-STYLE BRAKE GAS

MOTION PRO

06141634 LEVER OE-STYLE BRAKE GAS

£13.95 RRP £17.44
ALL BALLS FORK SEAL ONLY KIT HONDA/HUSQVARNA

ALL BALLS

04070459 FORK SEAL ONLY KIT HONDA/HUSQVARNA

£15.03 RRP £17.68
DT-1 Racing Europe Standard Dual-Layer Air Filter 10113387 for Selected Beta Models

DT-1 RACING EUROPE

DT-1 Racing Europe Standard Dual-Layer Air Filter 10113387 for Selected Beta Models

£16.03 RRP £19.55
Twin Air Pre-Oiled Standard Air Filter 10113136 for Selected Beta Models

TWIN AIR

Twin Air Pre-Oiled Standard Air Filter 10113136 for Selected Beta Models

£17.68 RRP £20.80
MOTION PRO Rim Lock - with Nut/Beveled Washer - LiteLoc™ II - 1.6"

MOTION PRO

02200062 Rim Lock - with Nut/Beveled Washer - LiteLoc™ II - 1.6"

£16.67 RRP £20.84
Twin Air Airbox Cover 10112425 for Selected Beta Models

TWIN AIR

Twin Air Airbox Cover 10112425 for Selected Beta Models

£18.36 RRP £21.60
Moose Offroad Clutch Master Cylinder Rebuild Kit

Moose Offroad

11321620 Clutch Master Cylinder Rebuild Kit

£17.05 RRP £21.86
Moose Offroad REAR SPROCKET / 48 TEETH / 520 PITCH / BLACK / STEEL

Moose Offroad

12101741 REAR SPROCKET / 48 TEETH / 520 PITCH / BLACK / STEEL

£17.27 RRP £22.14
Moose Offroad REAR SPROCKET / 46 TEETH / 520 PITCH / RED / ALUMINUM

Moose Offroad

12111863 REAR SPROCKET / 46 TEETH / 520 PITCH / RED / ALUMINUM

£17.45 RRP £22.37
DT-1 RACING EUROPE SANDSTOP FILTER SKIN UNIVERSAL

DT-1 RACING EUROPE

10113430 SANDSTOP FILTER SKIN UNIVERSAL

£18.73 RRP £22.84
MOTION PRO Rim Lock - with Nut/Beveled Washer - LiteLoc™ II - 2.15"

MOTION PRO

02200064 Rim Lock - with Nut/Beveled Washer - LiteLoc™ II - 2.15"

£18.35 RRP £22.94
Moose Offroad SEAL KIT COUNTERSHAFT BET

Moose Offroad

09351195 SEAL KIT COUNTERSHAFT BET

£18.03 RRP £23.11
JT SPROCKETS JTR210.38 REAR REPLACEMENT SPROCKET 38 TEETH 520 PITCH NATURAL C49 HIGH CARBON STEEL

JT SPROCKETS

12100630 JTR210.38 REAR REPLACEMENT SPROCKET 38 TEETH 520 PITCH NATURAL C49 HIGH CARBON STEEL

£18.81 RRP £23.51
Moose Offroad REAR SPROCKET / 49 TEETH / 520 PITCH / BLACK / STEEL

Moose Offroad

12101742 REAR SPROCKET / 49 TEETH / 520 PITCH / BLACK / STEEL

£18.38 RRP £23.56
JT SPROCKETS JTR210.39 REAR REPLACEMENT SPROCKET 39 TEETH 520 PITCH NATURAL C49 HIGH CARBON STEEL

JT SPROCKETS

12100631 JTR210.39 REAR REPLACEMENT SPROCKET 39 TEETH 520 PITCH NATURAL C49 HIGH CARBON STEEL

£18.96 RRP £23.70
JT SPROCKETS JTR210.40 REAR REPLACEMENT SPROCKET 40 TEETH 520 PITCH NATURAL STEEL

JT SPROCKETS

12100083 JTR210.40 REAR REPLACEMENT SPROCKET 40 TEETH 520 PITCH NATURAL STEEL

£19.26 RRP £24.07
Moose Offroad REAR SHOCK BUMPER MSE

Moose Offroad

13140691 REAR SHOCK BUMPER MSE

£19.03 RRP £24.40
JT SPROCKETS SPROCKET RL 42T HON BLK

JT SPROCKETS

12112637 SPROCKET RL 42T HON BLK

£19.76 RRP £24.70
JT SPROCKETS JTR210.44 REAR REPLACEMENT SPROCKET 44 TEETH 520 PITCH NATURAL STEEL

JT SPROCKETS

12100084 JTR210.44 REAR REPLACEMENT SPROCKET 44 TEETH 520 PITCH NATURAL STEEL

£19.89 RRP £24.86
Moose Offroad REPAIR KIT MSTR CYL

Moose Offroad

06170354 REPAIR KIT MSTR CYL

£19.67 RRP £25.22
Moose Offroad FUEL FILTER IN TANK KTM

Moose Offroad

07070092 FUEL FILTER IN TANK KTM

£19.84 RRP £25.43
Moose Offroad Master Cylinder Rebuild Kit 06170486 Beta

Moose Offroad

Moose Offroad Master Cylinder Rebuild Kit 06170486 Beta

£19.94 RRP £25.57
Moose Offroad Wheel Bearing and Seal Kit A251404 Beta Gas Gas Husqvarna Kawasaki KTM Yamaha

Moose Offroad

Moose Offroad Wheel Bearing and Seal Kit A251404 Beta Gas Gas Husqvarna Kawasaki KTM Yamaha

£20.31 RRP £26.04
Moose Offroad GASKET KT CARB MID BODY

Moose Offroad

09351011 GASKET KT CARB MID BODY

£20.32 RRP £26.05
JT SPROCKETS SPROCKET RL 44T HON BLK

JT SPROCKETS

12112638 SPROCKET RL 44T HON BLK

£20.93 RRP £26.16
Moose Offroad REBUILD KT CALIPER FR/RR

Moose Offroad

17020640 REBUILD KT CALIPER FR/RR

£20.45 RRP £26.22
JT SPROCKETS SPROCKET SC REAR 45T

JT SPROCKETS

12102492 SPROCKET SC REAR 45T

£21.01 RRP £26.26
Moose Offroad BEARING SHOCK LOWER BETA

Moose Offroad

13130159 BEARING SHOCK LOWER BETA

£21.08 RRP £27.02
JT SPROCKETS SPROCKET RL 45T HON BLK

JT SPROCKETS

12112639 SPROCKET RL 45T HON BLK

£21.79 RRP £27.24
JT SPROCKETS SPROCKET SC REAR 47T

JT SPROCKETS

12102434 SPROCKET SC REAR 47T

£21.82 RRP £27.28
JT SPROCKETS JTR210.46 REAR REPLACEMENT SPROCKET 46 TEETH 520 PITCH NATURAL STEEL

JT SPROCKETS

JTR21046 JTR210.46 REAR REPLACEMENT SPROCKET 46 TEETH 520 PITCH NATURAL STEEL

£21.98 RRP £27.47
JT SPROCKETS SPROCKET RL 46T HON RED

JT SPROCKETS

12112566 SPROCKET RL 46T HON RED

£22.26 RRP £27.82
JT SPROCKETS SPROCKET SC REAR 48T

JT SPROCKETS

12102435 SPROCKET SC REAR 48T

£22.32 RRP £27.90
JT SPROCKETS SPROCKET SC REAR 49T

JT SPROCKETS

12102436 SPROCKET SC REAR 49T

£22.32 RRP £27.90
JT SPROCKETS SPROCKET RL 46T HON BLK

JT SPROCKETS

12112640 SPROCKET RL 46T HON BLK

£22.33 RRP £27.91
Factory Links Rear Wheel Bearing Kit 02151217 for Selected Beta, Husqvarna and KTM Models

FACTORY LINKS

Factory Links Rear Wheel Bearing Kit 02151217 for Selected Beta, Husqvarna and KTM Models

£22.42 RRP £28.03
Factory Links Lower Shock Bearing Kit 13130234 for Selected Beta Models

FACTORY LINKS

Factory Links Lower Shock Bearing Kit 13130234 for Selected Beta Models

£22.42 RRP £28.03
Moose Offroad SPOKE SET STEEL 21"

Moose Offroad

02110073 SPOKE SET STEEL 21"

£21.91 RRP £28.09
MOTION PRO FORGED BRAKE LEVER

MOTION PRO

06140434 FORGED BRAKE LEVER

£22.50 RRP £28.12
Twin Air Radiator Sleeve 19040165 for Selected Beta Models

TWIN AIR

Twin Air Radiator Sleeve 19040165 for Selected Beta Models

£24.06 RRP £28.31
ALL BALLS WHEEL BEARING & SEAL KIT FRONT KAWASAKI/TRIUMPH

ALL BALLS

02150872 WHEEL BEARING & SEAL KIT FRONT KAWASAKI/TRIUMPH

£24.08 RRP £28.33
JT SPROCKETS SPROCKET RL 47T HON BLK

JT SPROCKETS

12112567 SPROCKET RL 47T HON BLK

£22.71 RRP £28.39
Moose Offroad CALIPER REBUILD KIT, FRONT, BETA

Moose Offroad

17020755 CALIPER REBUILD KIT, FRONT, BETA

£22.18 RRP £28.43
JT SPROCKETS SPROCKET SC REAR 52T

JT SPROCKETS

12102439 SPROCKET SC REAR 52T

£22.82 RRP £28.52
JT SPROCKETS SPROCKET SC REAR 53T

JT SPROCKETS

12102440 SPROCKET SC REAR 53T

£22.86 RRP £28.58
JT SPROCKETS SPROCKET RL 47T HON RED

JT SPROCKETS

12112568 SPROCKET RL 47T HON RED

£23.05 RRP £28.81
JT SPROCKETS SPROCKET RL 48T HON BLK

JT SPROCKETS

12112641 SPROCKET RL 48T HON BLK

£23.29 RRP £29.11
JT SPROCKETS SPROCKET RL 48T HON RED

JT SPROCKETS

12112569 SPROCKET RL 48T HON RED

£23.32 RRP £29.15
JT SPROCKETS SPROCKET SC REAR 50T

JT SPROCKETS

12102437 SPROCKET SC REAR 50T

£23.38 RRP £29.23
JT SPROCKETS SPROCKET SC REAR 51T

JT SPROCKETS

12102438 SPROCKET SC REAR 51T

£23.38 RRP £29.23
JT SPROCKETS SPROCKET RL 49T HON BLK

JT SPROCKETS

12112642 SPROCKET RL 49T HON BLK

£24.21 RRP £30.26
JT SPROCKETS SPROCKET RL 49T HON RED

JT SPROCKETS

12112570 SPROCKET RL 49T HON RED

£24.21 RRP £30.26
Moose Offroad WHEEL SPACER KIT, REAR, BETA

Moose Offroad

02200068 WHEEL SPACER KIT, REAR, BETA

£23.77 RRP £30.48
Moose Offroad WHEEL SPACER KIT, FRONT, BETA

Moose Offroad

02200067 WHEEL SPACER KIT, FRONT, BETA

£24.06 RRP £30.85
Moose Offroad Wheel Bearing and Seal Kit A251402 Beta Gas Gas Husaberg Husqvarna KTM

Moose Offroad

Moose Offroad Wheel Bearing and Seal Kit A251402 Beta Gas Gas Husaberg Husqvarna KTM

£24.10 RRP £30.90
JT SPROCKETS SPROCKET RL 50T HON RED

JT SPROCKETS

12112571 SPROCKET RL 50T HON RED

£25.02 RRP £31.27
JT SPROCKETS SPROCKET RL 51T HON BLK

JT SPROCKETS

12112644 SPROCKET RL 51T HON BLK

£25.11 RRP £31.39
JT SPROCKETS SPROCKET RL 50T HON BLK

JT SPROCKETS

12112643 SPROCKET RL 50T HON BLK

£25.14 RRP £31.43
FACTORY LINKS BEARING KIT FRT WHEEL

FACTORY LINKS

02151187 BEARING KIT FRT WHEEL

£25.41 RRP £31.76
JT SPROCKETS SPROCKET RL 51T HON RED

JT SPROCKETS

12112572 SPROCKET RL 51T HON RED

£25.49 RRP £31.86
Moose Offroad REAR SPROCKET / 52 TEETH / 520 PITCH / RED / ALUMINUM

Moose Offroad

12111869 REAR SPROCKET / 52 TEETH / 520 PITCH / RED / ALUMINUM

£25.08 RRP £32.16
Moose Offroad REAR SPROCKET / 51 TEETH / 520 PITCH / RED / ALUMINUM

Moose Offroad

12111868 REAR SPROCKET / 51 TEETH / 520 PITCH / RED / ALUMINUM

£25.40 RRP £32.56
JT SPROCKETS SPROCKET RL 52T HON RED

JT SPROCKETS

12112573 SPROCKET RL 52T HON RED

£26.10 RRP £32.62
JT SPROCKETS SPROCKET RL 52T HON BLK

JT SPROCKETS

12112645 SPROCKET RL 52T HON BLK

£26.19 RRP £32.74
ALL BALLS WHEEL BEARING & SEAL KIT FRONT BETA/KTM

ALL BALLS

02150871 WHEEL BEARING & SEAL KIT FRONT BETA/KTM

£28.05 RRP £33.00
MOTION PRO FLYWHEEL PULLER

MOTION PRO

38010125 FLYWHEEL PULLER

£26.80 RRP £33.50
JT SPROCKETS SPROCKET RL 53T HON RED

JT SPROCKETS

12112574 SPROCKET RL 53T HON RED

£27.02 RRP £33.77
JT SPROCKETS SPROCKET RL 53T HON BLK

JT SPROCKETS

12112646 SPROCKET RL 53T HON BLK

£27.13 RRP £33.91
MOTION PRO PLUG SOCKET TOOL 16 MM BLACK

MOTION PRO

38010329 PLUG SOCKET TOOL 16 MM BLACK

£27.33 RRP £34.16
MOTION PRO Tool Pro Plug Socket 14Mm

MOTION PRO

38010390 Tool Pro Plug Socket 14Mm

£27.54 RRP £34.42
Moose Offroad FORK SKINS EASY-ON 44MM-50MM

Moose Offroad

04060036 FORK SKINS EASY-ON 44MM-50MM

£27.94 RRP £35.82
Moose Offroad FORK AND DUST SEAL KIT 48MM

Moose Offroad

04070103 FORK AND DUST SEAL KIT 48MM

£28.28 RRP £36.25
FACTORY LINKS SEAL PACK

FACTORY LINKS

02151707 SEAL PACK

£29.90 RRP £37.37
Moose Offroad BEARING SHOCK UPPER

Moose Offroad

13130162 BEARING SHOCK UPPER

£29.19 RRP £37.42
ALL BALLS FORK & DUST SEAL KIT HUSQVARNA

ALL BALLS

04070423 FORK & DUST SEAL KIT HUSQVARNA

£33.49 RRP £39.40
Moose Offroad HANDLEBAR RISER KIT BLACK/CHROME

Moose Offroad

06020755 HANDLEBAR RISER KIT BLACK/CHROME

£30.76 RRP £39.43
Moose Offroad STEERING STEM BEARING KIT

Moose Offroad

04100034 STEERING STEM BEARING KIT

£30.76 RRP £39.44
Moose Offroad REAR SPROCKET / 48 TEETH / 520 PITCH / RED / ALUMINUM

Moose Offroad

12111865 REAR SPROCKET / 48 TEETH / 520 PITCH / RED / ALUMINUM

£31.09 RRP £39.86
Moose Offroad REAR SPROCKET / 51 TEETH / 520 PITCH / BLACK / ALUMINUM

Moose Offroad

12111856 REAR SPROCKET / 51 TEETH / 520 PITCH / BLACK / ALUMINUM

£31.18 RRP £39.98
Moose Offroad SPOKE SET MX1 21" SS

Moose Offroad

02110183 SPOKE SET MX1 21" SS

£31.67 RRP £40.60
MOTION PRO T6 TIRE LEVER 27MM

MOTION PRO

38100005 T6 TIRE LEVER 27MM

£33.40 RRP £41.75
MOTION PRO T6 TIRE LEVER 12/13MM

MOTION PRO

38100002 T6 TIRE LEVER 12/13MM

£34.74 RRP £43.42
FACTORY LINKS STEERING STEM BEARING KT

FACTORY LINKS

04010101 STEERING STEM BEARING KT

£35.13 RRP £43.91
MOTION PRO RINGER SEAL DRIVER 48MM

MOTION PRO

38050093 RINGER SEAL DRIVER 48MM

£42.57 RRP £53.21
Moose Offroad THROTTLE TUBE REPLACEMENT NATURAL

Moose Offroad

06320286 THROTTLE TUBE REPLACEMENT NATURAL

£42.84 RRP £54.92
Moose Offroad SPOKE SET MX1 21" SS

Moose Offroad

02110180 SPOKE SET MX1 21" SS

£43.43 RRP £55.68
Moose Offroad SPOKE SET MX1 18" SS

Moose Offroad

02110181 SPOKE SET MX1 18" SS

£43.79 RRP £56.14
Factory Links Wheel Bearing Kit 02151279 for Selected Beta, Gas Gas, Husqvarna and KTM Models

FACTORY LINKS

Factory Links Wheel Bearing Kit 02151279 for Selected Beta, Gas Gas, Husqvarna and KTM Models

£47.08 RRP £58.85
MOTION PRO LEVER CLUTCH FORGED-T6

MOTION PRO

06130519 LEVER CLUTCH FORGED-T6

£49.26 RRP £61.57
Moose Offroad LEVER CLUTCH MSE KTM RD

Moose Offroad

06132065 LEVER CLUTCH MSE KTM RD

£52.43 RRP £67.22
MOTION PRO MOTION PRO T-6 COMBO LEVER SET 27MM AND 12MM /13MM BOX END WRENCH

MOTION PRO

38100050 MOTION PRO T-6 COMBO LEVER SET 27MM AND 12MM /13MM BOX END WRENCH

£58.23 RRP £72.79
Moose Offroad LEVER BRAKE MSE/ARC RDL

Moose Offroad

06141849 LEVER BRAKE MSE/ARC RDL

£58.08 RRP £74.46
Moose Offroad LEVER CLUTCH MSE KTM BK

Moose Offroad

06132063 LEVER CLUTCH MSE KTM BK

£59.05 RRP £75.71
Moose Offroad LEVER CLUTCH MSE KTM BL

Moose Offroad

06132064 LEVER CLUTCH MSE KTM BL

£59.12 RRP £75.79
Moose Offroad SIDE STAND MOOSE BETA

Moose Offroad

05100498 SIDE STAND MOOSE BETA

£59.28 RRP £76.00
Moose Offroad REBUILD KT EFI FUEL PUMP

Moose Offroad

10090095 REBUILD KT EFI FUEL PUMP

£64.92 RRP £83.23
FACTORY LINKS TOOL BEARING PULLER

FACTORY LINKS

38050265 TOOL BEARING PULLER

£68.46 RRP £85.57
Moose Offroad FRONT BRAKE ROTOR GUARD ALUMINUM

Moose Offroad

17111348 FRONT BRAKE ROTOR GUARD ALUMINUM

£81.59 RRP £104.60
Moose Offroad ARC Power Lever - Clutch - Black

Moose Offroad

06132174 ARC Power Lever - Clutch - Black

£89.82 RRP £115.15
REKLUSE CLTCH EXP SERVICE KT BETA

REKLUSE

11313592 CLTCH EXP SERVICE KT BETA

£169.49 RRP £204.20

// More BETA models

From the same paddock

View all BETA models →
Free UK shipping over £100 ✦ 14-day no-quibble returns ✦ OEM-grade parts only ✦ UK support · Tue–Fri 9–5, Sat 9–4 ✦ Race-shop prices, paddock service ✦ Collection from Leeds by arrangement ✦
Free UK shipping over £100 ✦ 14-day no-quibble returns ✦ OEM-grade parts only ✦ UK support · Tue–Fri 9–5, Sat 9–4 ✦ Race-shop prices, paddock service ✦ Collection from Leeds by arrangement ✦