Progressive Suspension

77-4145

Progressive Suspension 412 Series 11in. Shocks - Black 412-4045B

SKU: TR77-4145

Body & Frame Parts

Manufactured from the finest materials available
The 412s simple, durable design makes them a cost effective improvement to your motorcycles suspension performance
A five position cam style spring load preload adjuster lets you easily dial in your ride
Available with either a standard or heavy duty progressive spring rates
Sold in pairs

Manufactured from the finest materials available
The 412s simple, durable design makes them a cost effective improvement to your motorcycles suspension performance
A five position cam style spring load preload adjuster lets you easily dial in your ride
Available with either a standard or heavy duty progressive spring rates
Sold in pairs
Made in the USA
Many fitments are available in either Standard or Heavy Duty. HD applications are recommended for bikes that are operated at or near the manufacturers maximum load rating over 50% of the time.
Before purchasing or attempting to install shocks that are different than the OEM length, confirm that your wheel travel can be altered without causing clearance issues such as swingarm/axle to exhaust contact as well as chain/belt guard or tire contact.


This Item Fits the Following Applications:
2012-2013 Harley Davidson FLD Switchback
2008-2013 Harley Davidson FXDF Fat Bob, Application: Heavy Duty, Fitment Notes: Heavy Duty Applications are recommended for bikes that are operated at or near the manufacturer's maximum load rating over 50% of the time.
2007-2013 Harley Davidson FXDB Street Bob, Application: Heavy Duty, Fitment Notes: Heavy Duty Applications are recommended for bikes that are operated at or near the manufacturer's maximum load rating over 50% of the time.
2006 Harley Davidson FXDI35 Dyna 35th Anniversary Super Glide, Application: Heavy Duty, Fitment Notes: Heavy Duty Applications are recommended for bikes that are operated at or near the manufacturer's maximum load rating over 50% of the time.
2006 Harley Davidson FXDBI Street Bob, Application: Heavy Duty, Fitment Notes: Heavy Duty Applications are recommended for bikes that are operated at or near the manufacturer's maximum load rating over 50% of the time.
2005-2006 Harley Davidson FXDCI Super Glide Custom, Application: Heavy Duty, Fitment Notes: Heavy Duty Applications are recommended for bikes

2003 Honda VTX 1800 R/S Retro Tachometer
Shinehome pressure 1865A210 MITSUBISHI 41MPP1 4
Mix me 2865