Quaife PSL Sequential Shifter v2


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The Pro-Sim Lite simulator sequential gear shifter has been developed in conjunction with Quaife Engineering. The internals is based on an original real Quaife gearbox design that gives the same in gear ‘clunk’ feeling from a real car. The completely solid and robust design weighs a reassuring 2.8kg as it is made from hardened steel providing outstanding durability.

This is a USB device that is compatible with nearly any racing game including iRacing, rFactor, Assetto Corsa, Project CARS, DiRT Rally and many many more on PC and can be used on PS4 with the use of a keyboard USB emulator PCB (not supplied).

The key point of our gear shifters has always been the feel and reliability and this was the key to our design brief again for the Lite version of our sequential shifter. We started with the shift mechanism which is CNC machined and case hardened for prolonged life and also features the same principle as our V1 and top of the range shifter. We then packaged it between two powder coated plates for a simple solution. These two plates can be mounted to any flat surface via 4 M6 bolts. For gear actuation, we use magnetic switches for the ultimate in reliability so there is no mechanical wear that you might find with other shifters using push button activation for example.

we have developed this V2 shifter as an evolution of our V1, so the differences are minimal but well placed. The general feedback was that everyone loved the feel of the V1 but it was on the loud side. With this in mind we tested a number of solutions and came up with this V2. The new PSL V2 feels exactly the same as the last V1 shifter but will just be quieter, it is by no means silent but there is no annoying ring or resonance that came with the V1 it is more of a solid thump and at a considerably lower level than the V1.

We also worked on reducing the secondary clunk which was the claw hitting back into position, which is what made it seem even louder as there was 2 distinct noises. We have used a very hard wearing silicone rubber as well to ensure the life is still very good from the shifter and it has been tested extensively before release.

Noise Level

We have tested the noise on the V2 and it comes in at 75Db measured next to the mechanism which is exactly the same as our H pattern. There is variation on what it it mounted to though, with our other sequential shifter and H pattern the body is made from solid aluminium which absorbs most of the vibration but with the PSL having thinner steel plates some vibration is transferred to the mounting surface. This is one reason why we think there is a difference on opinions on noise, if noise is of concern we suggest mounting the shifter on something similar to this; http://www.soundproofing-direct.co.uk/miscellaneous/dedsheet-vibration-damping-sheet


One big differentiator of our gear shifters to the current market is the material. In a market where plastic products have dominated, people often think ‘metal’ is considered the hardest or toughest material that could be used. For us just any old metal is not enough. We use the highest quality steel 835M19 often found in aerospace applications and go one step further to apply heat treatment to case harden the material. Once the material has been hardened only the most specialised carbide/diamond tools can be used to perforate it. We do this for ultimate durability on all the critical components, creating a shifter designed to last a lifetime.. We are using the same electronics which is a Leo Bodnar board with magnetic switches to sense the gear shifts for the ultimate reliability.


The shifter is supplied as a stand-alone USB game controller device and will be compatible with all major racing games on PC. It may also be possible to connect the shifter to a USB keyboard emulator for use on Playstation® for example.

Why we use Quaife

Why we use QUAIFE

RT Quaife Engineering Ltd uses motorsport-inspired design and precision engineering capabilities to deliver a large range of high-performance drivetrain products destined for vehicle manufacturers, motorsport competitors and the retail aftermarket.

Quaife was founded in 1965. Headquartered near Sevenoaks in the South East of England, the firm employs over 80 skilled people at two high technology manufacturing facilities, which produce a globally recognized brand of products that are sold through 70 distributors in 26 countries.

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Additional information

Weight 5 kg
Dimensions 35 × 20 × 20 cm
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Quaife PSL Sequential Shifter v2