YZ450F 14-17

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ATHENA Piston Kit S4F102000040

Regular price ¥45,000 JPY
WISECO Valve Kit SVKB2444

Regular price ¥58,400 JPY

In stock (6 units)
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¥21,500 off

WISECO Piston Kit - Racer Elite 4-Stroke Series s RE809M09700

Sale price ¥37,100 JPY Regular price ¥58,600
Hot Rods Crankshaft 4098

Regular price ¥73,500 JPY

In stock (7 units)
MOOSE RACING Race Piston Kit MPX1068

Regular price ¥61,100 JPY

In stock (5 units)
CYLINDER WORKS Cylinder - Standard - YZ450F 20005

Regular price ¥80,000 JPY

In stock (5 units)
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¥10,300 off
WISECO Connecting Rod Kit - Racer Elite WPR2440

Sale price ¥58,500 JPY Regular price ¥68,800
¥400 off
MOOSE RACING Connecting Rod MR6102

Sale price ¥74,900 JPY Regular price ¥75,300

In stock (5 units)
Hot Rods Crankshaft Kit CBK0223

Regular price ¥122,100 JPY

Low stock (2 units)
CYLINDER WORKS Cylinder Kit - Standard Bore 20005-K02

Regular price ¥117,500 JPY

In stock (105 units)
ATHENA Cylinder Kit P400485100053

Regular price ¥121,900 JPY

Low stock (3 units)
CYLINDER WORKS Cylinder Kit - Big Bore - 99.00 mm - Yamaha YZ450F 2014-2017 21005-K02

Regular price ¥131,700 JPY

In stock (28 units)
¥100 off

MOOSE RACING Clutch Lever - Shorty - Polished 1CNYG97

Sale price ¥1,800 JPY Regular price ¥1,900

In stock (20 units)
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Parts Unlimited Lever - Right Hand 5xc-83922-G0

Regular price ¥2,100 JPY
MOOSE RACING Clutch Lever - Silver H07-4922CS

Regular price ¥3,700 JPY

In stock (20 units)
PRO CIRCUIT Clutch Lever - Black Kawasaki/Suzuki/Yamaha PCCL04-01-052

Regular price ¥3,200 JPY

In stock (20 units)
MOOSE RACING Repair Kit - Master Cylinder - Brake 18-1010

Regular price ¥4,500 JPY

Low stock (3 units)
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MOOSE RACING Repair Kit - Master Cylinder 18-1019

Regular price ¥4,500 JPY
PRO CIRCUIT Brake Lever - Black PCBL03-01-017

Regular price ¥4,000 JPY

In stock (20 units)
MOOSE RACING Repair Kit - Master Cylinder 06-953X

Regular price ¥4,300 JPY

In stock (20 units)
¥800 off

MOOSE RACING Brake Lever - Polished 1BDWF47

Sale price ¥3,800 JPY Regular price ¥4,600

In stock (20 units)
¥500 off
UFO Grips - Lock-On - Blue MA01828#C

Sale price ¥3,700 JPY Regular price ¥4,200

In stock (7 units)
¥500 off
UFO Grips - Lock-On - Gray MA01828#E

Sale price ¥3,700 JPY Regular price ¥4,200

In stock (13 units)
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¥500 off
UFO Grips - Lock-On - Black MA01828#K

Sale price ¥3,700 JPY Regular price ¥4,200
MOOSE RACING Brake Lever - Silver H07-4921BS

Regular price ¥5,400 JPY

In stock (20 units)
¥500 off
MOOSE RACING Lever Set - Competition - Black 1SGYG92

Sale price ¥5,200 JPY Regular price ¥5,700

In stock (20 units)
¥500 off
MOOSE RACING Lever Set - Competition - Blue 1SGG93

Sale price ¥5,200 JPY Regular price ¥5,700

In stock (20 units)
¥800 off

MOOSE RACING Perch - Clutch - Hot Start - Black 9HOTYZ01

Sale price ¥4,800 JPY Regular price ¥5,600

In stock (20 units)
MOOSE RACING Clutch Lever - Silver H07-4912CS

Regular price ¥8,600 JPY

In stock (5 units)
MOOSE RACING Brake Lever - Silver H07-4912BS

Regular price ¥7,600 JPY

In stock (12 units)
¥800 off

MOOSE RACING Throttle Tube - Aluminum M40-210

Sale price ¥7,100 JPY Regular price ¥7,900

In stock (16 units)
MOOSE RACING Repair Kit - Master Cylinder 06-905X

Regular price ¥7,600 JPY

In stock (12 units)
ACERBIS Handguards - K-Future - Blue/White 2895631006

Regular price ¥9,300 JPY

In stock (173 units)
ACERBIS Handguards - K-Future - Black/White 2895631007

Regular price ¥9,300 JPY

In stock (135 units)
PRO CIRCUIT Throttle Tube - YZF/RMZ - Aluminum TB-07

Regular price ¥12,700 JPY

In stock (20 units)
MOOSE RACING Handguard Mount - Moto Kit - Yamaha 53-5020

Regular price ¥9,500 JPY

In stock (20 units)
MOOSE RACING Brake Lever - Flex - Black BR-721

Regular price ¥11,900 JPY

In stock (11 units)
MOOSE RACING Brake Lever - Flex - Blue BR-722

Regular price ¥11,900 JPY

In stock (9 units)
MOOSE RACING Brake Lever - Flex - Red BR-723

Regular price ¥11,900 JPY

Low stock (2 units)
RENTHAL Bar Mount - 1-1/8" - 5 mm Offset CL001

Regular price ¥14,600 JPY

Low stock (4 units)
RENTHAL Bar Mount - 1-1/8" CL002

Regular price ¥14,600 JPY

In stock (20 units)
RENTHAL Bar Mount - 36Tech - 5 mm Offset CL051

Regular price ¥17,300 JPY

In stock (20 units)
RENTHAL Bar Mount - 36Tech - 0 mm Offset CL052

Regular price ¥17,300 JPY

In stock (20 units)
RENTHAL Handlebar - Twinwall® - 997 - RC/'04 - '18 CRF/'06+ KX/F - Blue 99701BU02184

Regular price ¥30,400 JPY

In stock (5 units)
RENTHAL Handlebar - Fatbar36 - RC/Honda CRF 930-01-BK

Regular price ¥38,900 JPY

In stock (20 units)
RENTHAL Handlebar - Fatbar36 - KTM 125 - 450 931-01-BK

Regular price ¥38,900 JPY

In stock (20 units)
RENTHAL Handlebar - Fatbar36 - Reed/Windham 933-01-BK

Regular price ¥38,900 JPY

In stock (20 units)
RENTHAL Handlebar - Fatbar36 - KTM SX/SX-F/Suzuki RM/RM-Z 934-01-BK

Regular price ¥38,900 JPY

In stock (15 units)
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MOOSE RACING Spring Pin Footpeg - Yamaha P17-4601

Regular price ¥3,200 JPY
Sold out
¥700 off

MOOSE RACING Shift Lever - Blue - Yamaha 81-0224-02-20

Sale price ¥6,000 JPY Regular price ¥6,700

Let customers speak for us

from 669 reviews

Will Be Back!

I recently purchased the Arrow Race-Tech Slip-On Exhaust (Aluminum Dark) for my Kawasaki Z900 (’17–’24), and I couldn’t be happier. The quality is top-tier—lightweight, beautifully finished, and it gives the bike the deep, aggressive sound it should’ve had from the factory. Throttle response feels smoother, and the overall riding experience is noticeably more exciting.

Huge shoutout to Bill from Bills Exhaust. His communication was excellent from start to finish—quick replies, honest info, and genuinely great customer service. The exhaust shipped fast with no delays, no issues, and no backorder nonsense. Exactly what you want when ordering parts for your bike.

If you’re on the fence, go for it. The exhaust is incredible, and Bill makes the whole process even better. Highly recommend!

Brian Brayley

12/01/2025

71856AKN Arrow Race-Tech Slip-on Exhaust, Aluminum Dark for Kawasaki Z900 17-24

Arrived super quick

Arrived super quick, no complaints

Anonymous

11/20/2025

IN STOCK M4 Exhaust GP Black Slip on GSXR600/750 2011-2025 SU6112-GP

Great customer support

Great customer support, fast shipping and delivery , and great quality exhaust . Sounds nice 👍🏼 would definitely recommend

Atticus

11/13/2025

IN STOCK M4 Exhaust GP19 Black Slip On 2009 - 2025 2026 ZX6R zx6 KA6922-GP19

Fast service and the pipe is very well made

Fast service and the pipe is very well made.

72188PD Arrow H.D.1250 Pan America 20-25 Racing St. Steel De-Catalyzed Collector

Purchased the power core 4 along with the mega bomb header

Purchased the power core 4 along with the mega bomb header. Sounds great! Looks even better! Slammed them both on my 22’ KX 250f.

ROBERT T CLARK

11/11/2025

FMF Powercore 4 Muffler KX250F/X 2021-2023 042392 1821-2038

Was trying to find a reseller for Graves products. Stumbled upon this site. No hassles. Ships to Australia (big plus). Now I can mod my dream bike.
Exhaust is gnarly, obnoxious... exactly what I want! Makes all the right sounds.
I'd buy another one if I had another bike.
Super easy fitment, shaved off so much weight with the titanium build.
Absolute piece of art.

Nazzy

11/05/2025

Bill's Exhausts

Great price and amazing sound

Great price and amazing sound.

Michael Adams

10/27/2025

AKRAPOVIC Carbon Fiber Muffler NINJA 400 /500 2018-2025 S-K4SO6-APC 1811-3515

This system with a BT Moto tune sounds and feels amazing

This system with a BT Moto tune sounds and feels amazing. The weight reduction, power increase makes this bike handle even better.
The titanium exhaust system looks amazing.

Lou D

10/19/2025