The new BP-51 (Bypass 51mm Diameter Bore) range of high performance, bypass shock absorbers is the result of an exhaustive development process aimed at delivering the ultimate in both comfort and control.
Designed, developed and tested entirely in-house by ARB’s team of Old Man Emu ride engineers, BP-51 shock absorbers are vehicle specific and utilise existing mounting locations to provide easy installation without the need for additional vehicle modification.
Unlike most other adjustable shock absorbers, which provide adjustment for compression only, the BP-51 range allows on vehicle, independent adjustability of both rebound and compression to offer class leading ride customisation that can be tailored to individual vehicle or trip requirements.
In addition to the velocity sensitive damping used in most shock absorbers, where the faster the piston moves, the higher the level of damping is generated, BP-51 shock absorbers also generate damping dependent on the position of the piston within the shock absorber’s body via their bypass design.
While most shock absorbers only generate damping based on fluid flowing through the piston, the BP-51 offers an alternative path from one chamber to the other, around the piston in the form of bypass passages. Some fluid flows through the piston and some fluid bypasses around the piston in the bypass passages.
This results in an ability for the shock absorber to provide the best of both worlds, with a comfortable and compliant ride during normal driving and a more controlled ride over more challenging terrain. With greater levels of damping generated at each end of the stroke, the piston slows as it approaches full compression and extension, preventing harsh topping out against the bump stop and allowing larger bumps and corrugations to be absorbed more easily.
Development and Manufacturing
All BP-51 shock absorbers are manufactured in-house by ARB. In order to achieve this, significant investment has been made in state of the art machining and hard anodising equipment, allowing ARB total control of the process to ensure the highest possible quality.
BP-51 shock absorber bodies are manufactured using aircraft grade (6061 T6) anodised aluminium to dissipate heat more efficiently than steel or alloy steel and provide superior corrosion resistance.
Extensive lab, real world and destructive testing has been undertaken during the development process to ensure that reliability, longevity and performance all meet ARB’s impeccable standards.
|BP-51 Suspension Application Range|
|Jeep Wrangler JK||✓||✓|
|Mazda BT-50 2011 on||✓||✓|
|Nissan Patrol Y62 2010 on (non HBMC models)||✓||✓|
|Nissan Patrol GU Y61||✓||✓|
|Nissan Patrol GQ Y60||✓||✓|
|Toyota LandCruiser 200 Series Wagon||✓||✓|
|Toyota LandCruiser Prado 150 Series||✓||✓|
|Toyota FJ Cruiser 2010 on||✓||✓|
|Toyota LandCruiser 70 Series Dual Cab||✓||✓|
|Toyota LandCruiser 76 Series Wagon||✓||✓|
|Toyota LandCruiser 78 Series||✓||✓|
|Toyota LandCruiser 79 Series Single Cab||✓||✓|
|Toyota Tacoma 2016 on||✓||✓|
|Toyota Tacoma V6 2005 to 2015||✓||✓|
|Toyota Hilux 2015 on||✓||✓|