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Progressive Suspension Drop-In Fork Lowering System
Made in the USA
Read ( 87 ) Reviews

Progressive Suspension Drop-In Fork Lowering System

J&P Cycles Part Number: 166-4531

Manufacturer Part Number: 10-2204

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Description for Progressive Suspension Drop-In Fork Lowering System

• Forget everything you know about lowering motorcycle front ends, we've completely changed the game

• Our DROP-IN fork Lowering Kits have transformed a once messy, and time consuming install into a 30 minute cake walk on most models

• Pull up to two inches out of the front end of your bike without the hassle of disassembling the forks or even changing out the oil

• The whole process can be done with basic tools

Product Specs

Product Specs for Progressive Suspension Drop-In Fork Lowering System

Manufacturer Part Number:
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Fitment Questions?

With over 750 years of experience combined, our tech staff has the answers!

Compatible Models

Suzuki Models

  • GSX R1000 : 2005–2008
  • GSX R750 : 2006–2009

Yamaha Models

  • YZF R6 : 2005, 2008–2016
  • YZF R6 World GP 50th Anniversary Edition : 2012
Customer Reviews

Customer Reviews for Progressive Suspension Drop-In Fork Lowering System

Overall Rating

5 out of 5 stars (based on 87 reviews)

5 stars (73)

4 stars (7)

3 stars (4)

2 stars (3)

1 star (0)

0 stars (0)

JOHN on 3/30/2020

Fast shipping to the UK, looks a good product but can't get them fitted yet due to the lock down of the country, but when fitted I will let you know how my bike handles..Stay Safe People, Regards John..

BRAD on 2/24/2020

Great product, simple install on 2007 Heritage ST C!!

RAY on 1/13/2020

good price. does what i want to front forks

Gofster on 12/16/2019

Undetermined. Inadequate installation instructions. I ordered a shop manual from HD today for the V Rod to explain why the Progressive instructions did not work.

BILL on 10/1/2019

Fantastic! Easy install and much improved performance on my '08 SG

JUAN on 6/24/2019

Easy instal a bit confusing on how much to cut to get the right lowering size i cut pvc pipe to a 3” almost covers the fork edge looks good but it’s a bit to low for my bike pcv needs to be 4” pipe I need to do the whole process again witch took me like 1:30 lots of parts to remove but still easy to do next time I should be able to do it in half the time

NICK on 6/17/2019

Just what the doctor ordered. F'd up my steering with a 21" front wheel. Installed the two inch drop and switched to amsoil 10 wt oil and I couldn't be happier with the results. Rides better and shines in the corners now, super tight with no more flop

BRAD on 6/1/2019

Straight forward instructions, easy to do.

VINCE on 5/23/2019

Good Quality Easy to understand insrtuctions

JEREMY on 5/20/2019

Simple, easy install on β€˜16 softail slim. Instructions could use some updating,had to call to find out tube cut length. Overall good ride enhancement to the front end, achieved what needed to be done so my friend could touch the ground flat footed, lowered bike about an inch, with additional improvement to handling and response of the front forks. I took it myself after install for test ride of 3 miles and pushed the bike, felt great in the corners and bumps at all speeds. Highly recommend.

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