CYLINDER WORKS

Cylinder Works Big Bore Cylinder Kit 860 cc KRF 750 Teryx 2005-2014 31007-K01

Regular price ¥236,000 JPY

Very low stock (1 unit)
¥1,500 off

CYLINDER WORKS Big Bore Gasket Kit KX450F 2009-2015 31011-G01

Sale price ¥12,800 JPY Regular price ¥14,300

Low stock (4 units)
CYLINDER WORKS Cylinder Kit - Big Bore - Yamaha YZ250 1999-2023 295cc 72mm +5.6mm 21009-K01

Regular price ¥174,900 JPY

In stock (1613 units)
CYLINDER WORKS Cylinder Kit - Big Bore - Yamaha 295cc YZ 250 1999-2023 21009-K01

Regular price ¥174,900 JPY

In stock (1606 units)
CYLINDER WORKS Cylinder - Standard ACTUALLY FOR STD BORE 10005

Regular price ¥55,800 JPY

Low stock (2 units)
CYLINDER WORKS Big Bore Gasket Kit 21009-G01

Regular price ¥18,000 JPY

In stock (380 units)
Sold out
CYLINDER WORKS Cylinder - Standard - RMZ250 - 2010-2012 40004

Regular price ¥65,600 JPY
Sold out

CYLINDER WORKS Cylinder - Standard ACTUALLY FOR STD BORE 60006

Regular price ¥95,800 JPY
Sold out

CYLINDER WORKS Cylinder Kit - Standard Bore 60006-K02

Regular price ¥164,000 JPY
CYLINDER WORKS Cylinder Kit - High Compression 60002-K02HC

Regular price ¥167,600 JPY

In stock (112 units)
CYLINDER WORKS Cylinder Kit - High Compression 20001-K01HC

Regular price ¥115,500 JPY

In stock (60 units)
Sold out

CYLINDER WORKS Gasket Kit - Big Bore 51006-G01

Regular price ¥23,300 JPY
¥1,200 off

CYLINDER WORKS Big Bore Gasket Kit 11002-G01

Sale price ¥12,400 JPY Regular price ¥13,600

In stock (79 units)
CYLINDER WORKS Cylinder Kit - Standard 40004-K03

Regular price ¥103,200 JPY

In stock (27 units)
CYLINDER WORKS Cylinder Kit - Standard 20002-K01

Regular price ¥109,800 JPY

In stock (42 units)
CYLINDER WORKS Cylinder Big Bore Kit 270cc 12.6:1 KX250F2004-2008 / RM-Z250 04-06 31001-K01

Regular price ¥115,700 JPY

In stock (34 units)
CYLINDER WORKS Cylinder - Standard - KX250F - 2011-2012 30006

Regular price ¥61,800 JPY

In stock (5 units)
Sold out

CYLINDER WORKS Cylinder Kit - Standard Bore 30009-K01

Regular price ¥90,200 JPY
CYLINDER WORKS Cylinder - Standard 30001

Regular price ¥60,200 JPY

In stock (6 units)
CYLINDER WORKS Cylinder Kit - Standard 40002-K01

Regular price ¥109,000 JPY

In stock (175 units)
CYLINDER WORKS Big Bore Gasket Kit 23001-G01

Regular price ¥16,600 JPY

In stock (68 units)
CYLINDER WORKS Cylinder Head Kit - Standard Bore RM-Z 250/ KX250F 2004-2006 CH3002-K01

Regular price ¥100,300 JPY

In stock (232 units)
CYLINDER WORKS Cylinder - Standard Bore ACTUALLY FOR STD BORE 60001

Regular price ¥98,400 JPY

In stock (9 units)
CYLINDER WORKS Cylinder Kit - Big Bore 23001-K01

Regular price ¥127,800 JPY

In stock (57 units)
CYLINDER WORKS Cylinder Kit - Standard 10008-K01

Regular price ¥97,300 JPY

In stock (11 units)
CYLINDER WORKS Cylinder Kit - Front 30007-K01

Regular price ¥101,100 JPY

In stock (116 units)
CYLINDER WORKS Cylinder Kit - Big Bore 80.00mm 270ccCRF250R 2010-2017 11007-K01

Regular price ¥111,100 JPY

In stock (45 units)
CYLINDER WORKS Cylinder Kit - Standard 40004-K02

Regular price ¥103,200 JPY

Low stock (3 units)
CYLINDER WORKS Cylinder Kit - Standard DR-Z 400 40001-K01

Regular price ¥102,500 JPY

In stock (252 units)
CYLINDER WORKS Cylinder Kit - Standard 20004-K01

Regular price ¥123,400 JPY

In stock (95 units)
CYLINDER WORKS Big Bore Gasket Kit 41002-G01

Regular price ¥14,700 JPY

Low stock (2 units)
CYLINDER WORKS Cylinder Kit - Standard Bore 20004-K02

Regular price ¥123,400 JPY

In stock (7 units)
CYLINDER WORKS Cylinder Kit - Standard Bore 60002-K05

Regular price ¥144,100 JPY

In stock (202 units)
CYLINDER WORKS Cylinder Kit - Big Bore 11004-K02

Regular price ¥101,800 JPY

Low stock (2 units)
CYLINDER WORKS Cylinder Head Kit CH1003-K01

Regular price ¥86,700 JPY

In stock (508 units)
CYLINDER WORKS Cylinder - Standard 30006-K01

Regular price ¥97,600 JPY

In stock (192 units)
CYLINDER WORKS Cylinder - Standard ACTUALLY FOR STD BORE 60002

Regular price ¥93,100 JPY

In stock (12 units)
CYLINDER WORKS Cylinder Kit - Standard 20003-K02

Regular price ¥115,500 JPY

Low stock (3 units)
CYLINDER WORKS Cylinder Kit - Standard 10001-K02

Regular price ¥89,300 JPY

In stock (6 units)
CYLINDER WORKS Cylinder Kit - Standard 20001-K01

Regular price ¥109,800 JPY

In stock (134 units)
CYLINDER WORKS Cylinder Big Bore Kit LT-Z/ DR-Z 400 41001-K01

Regular price ¥122,600 JPY

In stock (318 units)
Sold out
CYLINDER WORKS Cylinder - Standard ACTUALLY FOR STD BORE 60004

Regular price ¥98,400 JPY
CYLINDER WORKS Cylinder - Standard ACTUALLY FOR STD BORE 60003

Regular price ¥98,400 JPY

In stock (6 units)
CYLINDER WORKS Cylinder Head Kit - Standard Bore KX250F 2006-2008 CH3001-K01

Regular price ¥100,800 JPY

In stock (282 units)
CYLINDER WORKS Cylinder Kit - Standard 40003-K01

Regular price ¥103,200 JPY

Low stock (3 units)
CYLINDER WORKS Cylinder Kit - Standard - Honda CW10011K01

Regular price ¥91,200 JPY

In stock (125 units)
CYLINDER WORKS High Compression Cylinder Kit - Standard Bore 20010-K02HC

Regular price ¥109,800 JPY

Low stock (2 units)
CYLINDER WORKS Cylinder Kit - Standard 10003-K01

Regular price ¥97,300 JPY

In stock (146 units)
CYLINDER WORKS Cylinder - Standard 20002

Regular price ¥58,000 JPY

In stock (11 units)
Sold out

CYLINDER WORKS Cylinder - Standard 10002

Regular price ¥59,000 JPY

Let customers speak for us

from 668 reviews

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