PROGRESSIVE SUSPENSION

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PROGRESSIVE SUSPENSION 412 Series Shock - 14.25" - Standard - Chrome - H-D 412-4024C

Regular price ¥59,900 JPY
PROGRESSIVE SUSPENSION 412 Series Shock - 11" - Standard - Chrome - Dyna 412-4037C

Regular price ¥59,900 JPY

In stock (11 units)
PROGRESSIVE SUSPENSION 412 Series Shock - 12" - Standard - Chrome - Dyna 412-4036C

Regular price ¥59,900 JPY

In stock (14 units)
PROGRESSIVE SUSPENSION 412 Series Shock - 12" - Heavy Duty - Black - Dyna 412-4044B

Regular price ¥59,900 JPY

In stock (11 units)
PROGRESSIVE SUSPENSION 413 Series Shock - Black - Standard - 15" 413-4039B

Regular price ¥55,500 JPY

In stock (20 units)
¥3,100 off

PROGRESSIVE SUSPENSION 412 Series Shock - 12" - Standard - Chrome - H-D 412-4035C

Sale price ¥71,700 JPY Regular price ¥74,800

In stock (14 units)
PROGRESSIVE SUSPENSION 412 Series Shock - 13.5" - Standard - Chrome - H-D 412-4029C

Regular price ¥71,700 JPY

In stock (20 units)
PROGRESSIVE SUSPENSION 412 Series Shock - 11" - Standard - Chrome - H-D 412-4005C

Regular price ¥59,900 JPY

Very low stock (1 unit)
PROGRESSIVE SUSPENSION Oil Level Adjustment Kit - Fork FOL-1

Regular price ¥4,100 JPY

In stock (12 units)
PROGRESSIVE SUSPENSION 412 Series Shock - 11" - Standard - Black - H-D 412-4005B

Regular price ¥59,900 JPY

In stock (7 units)
PROGRESSIVE SUSPENSION Micro Pump with/Gauge GP3-100

Regular price ¥11,200 JPY

Low stock (4 units)
PROGRESSIVE SUSPENSION Adjustment Tool - Fork Level FOL-2

Regular price ¥9,200 JPY

Low stock (3 units)
PROGRESSIVE SUSPENSION Mounted Pump - Gauge - 60 lbs GP3-60

Regular price ¥11,200 JPY

In stock (17 units)
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PROGRESSIVE SUSPENSION Mini Gauge Pump - 0-300 lbs GP3-300

Regular price ¥11,200 JPY
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PROGRESSIVE SUSPENSION For Lowering Kit for Cruiser Bikes 10-1550

Regular price ¥22,700 JPY
PROGRESSIVE SUSPENSION Mounted Pump - Gauge - 30 lbs GP3-30

Regular price ¥11,200 JPY

In stock (9 units)
PROGRESSIVE SUSPENSION For Lowering Kit for Cruiser Bikes 10-1552

Regular price ¥22,700 JPY

Low stock (2 units)
PROGRESSIVE SUSPENSION For Lowering Kit for Cruiser Bikes 10-1555

Regular price ¥25,100 JPY

Low stock (3 units)
PROGRESSIVE SUSPENSION Fork Lowering Kit - 39 mm 10-1560

Regular price ¥25,100 JPY

In stock (11 units)
PROGRESSIVE SUSPENSION Fork Lowering Kit - 41 mm 10-1561

Regular price ¥25,100 JPY

In stock (20 units)
PROGRESSIVE SUSPENSION 512 Series Shock - Rear 512-1011B

Regular price ¥54,300 JPY

Low stock (2 units)
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PROGRESSIVE SUSPENSION 512 Series Shock - Front 512-1009B

Regular price ¥54,300 JPY
PROGRESSIVE SUSPENSION 512 Series Shock - Rear 512-1002B

Regular price ¥31,200 JPY

Low stock (2 units)
PROGRESSIVE SUSPENSION 512 Series Shock - Rear 512-1021B

Regular price ¥31,200 JPY

In stock (20 units)
¥16,100 off

PROGRESSIVE SUSPENSION 512 Series Shock - Rear 512-1016B

Sale price ¥31,200 JPY Regular price ¥47,300

Low stock (3 units)
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PROGRESSIVE SUSPENSION Front Fork Springs 11-1101

Regular price ¥17,700 JPY
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PROGRESSIVE SUSPENSION Front Fork Springs 11-1103

Regular price ¥17,700 JPY
¥11,100 off

PROGRESSIVE SUSPENSION Front Fork Springs 11-1108

Sale price ¥6,600 JPY Regular price ¥17,700

In stock (61 units)
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PROGRESSIVE SUSPENSION Front Fork Springs 11-1106

Regular price ¥17,700 JPY
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PROGRESSIVE SUSPENSION Front Fork Springs 11-1104

Regular price ¥17,700 JPY
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PROGRESSIVE SUSPENSION Front Fork Springs 11-1111

Regular price ¥17,700 JPY
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PROGRESSIVE SUSPENSION Front Fork Springs 11-1110

Regular price ¥17,700 JPY
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PROGRESSIVE SUSPENSION Front Fork Springs 11-1109

Regular price ¥19,600 JPY
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PROGRESSIVE SUSPENSION Front Fork Springs 11-1112

Regular price ¥17,700 JPY
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PROGRESSIVE SUSPENSION Front Fork Springs - 25/34 lb/in - 27 mm/502 mm 11-1114

Regular price ¥17,700 JPY
PROGRESSIVE SUSPENSION Front Fork Springs - '88-'98 GL1500 11-1152

Regular price ¥25,400 JPY

In stock (20 units)
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PROGRESSIVE SUSPENSION Front Fork Springs 11-1115

Regular price ¥17,700 JPY
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PROGRESSIVE SUSPENSION Front Fork Springs 11-1117

Regular price ¥17,700 JPY
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PROGRESSIVE SUSPENSION Front Fork Springs - 25/35 lb/in - 24 mm/484 mm 11-1119

Regular price ¥19,600 JPY
PROGRESSIVE SUSPENSION Front Fork Springs - 30/45 lb/in - 29 mm/502 mm 11-1128

Regular price ¥19,600 JPY

In stock (19 units)
PROGRESSIVE SUSPENSION Front Fork Springs 11-1129

Regular price ¥19,600 JPY

Low stock (4 units)
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PROGRESSIVE SUSPENSION Front Fork Springs 11-1127

Regular price ¥17,700 JPY
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PROGRESSIVE SUSPENSION Front Fork Springs - 20/30 lb/in - 24 mm/572 mm 11-1141

Regular price ¥18,900 JPY
PROGRESSIVE SUSPENSION Front Fork Springs 11-1126

Regular price ¥19,600 JPY

In stock (20 units)
PROGRESSIVE SUSPENSION Front Fork Springs 11-1144

Regular price ¥19,600 JPY

In stock (9 units)
PROGRESSIVE SUSPENSION Front Fork Springs - 25/40 lb/in - 31 mm/572 mm 11-1151

Regular price ¥20,800 JPY

In stock (20 units)
Sold out

PROGRESSIVE SUSPENSION Front Fork Springs - 19/23 lb/in - 37 mm/556 mm 11-1143MX

Regular price ¥17,700 JPY
PROGRESSIVE SUSPENSION Front Fork Springs 11-1145

Regular price ¥19,600 JPY

Low stock (4 units)
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PROGRESSIVE SUSPENSION Shocks - 12-Series - Black - 12.5" 12-1201B

Regular price ¥37,000 JPY
PROGRESSIVE SUSPENSION Shocks - 12-Series - Black - 13.0" 12-1202B

Regular price ¥40,800 JPY

Low stock (4 units)

Let customers speak for us

from 676 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