Office Racing Seats

About Us

GSM Brakes is a retail store of GSM performance, established in 2003. My name is Garreth Sleigh and I set this company up out of a passion for sports cars and racing.

In 2007 we decided it was time to specialize in performance large brake conversions. We proudly released our website BigBrakes4U initially retailing HiSpec Motorsport brake conversions and over the years slowly adding all the major brands from Tarox, HiSpec, D2 and K Sport brakes. We are always working on bringing the best deals to market with our extensive application lists and caliper choices.


In 2009 we started retailing K Sport and D2 brake conversions which helped to dramatically increase the availability of brakes with their fantastic price structure. With full brake conversions starting from under £1000.00 we realized that these would be perfect for those looking to upgrade the power of their road cars through to those looking for serious performance on track.


In June 2011 we re-launched our website with a brand new design, layout and easier to use format to make your shopping experience with us even better. To accompany the new website over the next year we are looking to increase our product range with more manufacturers and new products to keep your mouth watering with the latest automotive braking. Our main brands are currently: HiSpec Motorsport, KSport, D2 Brakes Tarox and Brembo. We feel that with these brands we are able to fufill every requirement no matter what budget is available.


In the 2012 we have branched out and secured our selves a retail unit and showroom facility. After 8 weeks of designing and building our new showroom we officially opened the first week of December and are proud to say that we now have the largest display of Motorsport and race seating in the UK along with our range of Brembo, Hi Spec Motorsport and K Sport brake conversion kits. 


In store we now have 2 racing simulators running Gran Turismo 5 if you want to take on the TopGear track and set some lap times, we have a range of Motorsport, road and classic seating you can test to find the right product for you. When this is linked with our experience of the market we really are your only port of call when it comes to grabbing your self the perfect package. 

In 2013 we started supporting Rainbows; Hospice for children and young people. While we expand and try to give back to our local community we understand the importance of supporting local charities and your support and business helps us to pass this on. 

Registered company details:


Company number 09256002

Registered office addres

Unit 5 High Hazles Road, Manvers Business Park

Nottingham, NG12 3GZ

Rainbows hospice

 About Us - GSM Sport Seats retailers of Motorsport seats, harness belts and more