What are the opening hours?

Tuesday 8:30am - 5:30pm Wednesday 8:30am - 5:30pm Thursday 8:30am - 5:30pm Friday 8:30am - 5:30pm Saturday 8:30am - 2pm

GSG Performance

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🏁Motorcycle Performance Specialist
📍Based at Knockhill Racing Circuit
Service | Repair | Dyno | Suspension

28/10/2026

Kawasaki ZX6R 636 2026 model in for some custom mapping work after exhaust and filter modifications 📈

Restrictions removed, fueling corrected & smoothed via platform

24/10/2026

Not very often I see 27whp gain from a 600....

After this customer complained his new race-base cbr600rr felt a bit flat I confirmed it wasn't quite producing the output it should 📈

Soon noticed some power mode settings weren't quite setup to allow full output. Settings adjusted and fueling sorted with final output of 114.26whp & 45.21 ft/Ibs torque

21/10/2026

Suspension bench has been busy with some upgrades and service work ongoing 🏁

OEM suspension service work along with upgrades for various makes and models...

16/10/2026

Today's project, some upgrades front and rear along with custom mapping work via platform on this Yamaha XSR700

20IDS kit and Razor R rear shock installed and setup specific for rider weight 📝

06/10/2026

Triumph SpeedTwin 1200 in for some custom mapping work via platform

87.08whp & 80.97ft/Ibs torque

Custom mapping work utilising zeitronix wideband data acquisition 📈

04/10/2026

🏁 GOOD MORNING! 🏁

We’re ready for the final bike race day of the year!

Don’t miss the Jock Taylor Race, coming up just after lunchtime. It’s sure to be a great one! 🏆

Good luck, everyone, and enjoy the racing! 🏁

25/09/2026

🔧 workshop life recently

Some mega bikes in past, suspension rebuilds and dyno work

A few projects to update with soon too 🏁

07/09/2026

Immaculate 2010 S1000RR in past for some upgrades including Öhlins front and rear along with new gold fork tubes,

Akrapovic full system and custom mapping via power commander 6

Samco coolant hoses and much more 🤘

31/07/2026

Workshop closed now for weekend but back open Monday 3rd

I'll reply to messages when I can, please whatsapp 07500171558 🏁

27/07/2026

KTM 1290 Superduke R 🔊

Some custom mapping work via platform.

Each cylinder individually mapped in order to smooth slow speed running. Not much gained peak power on this one but low/mid had much improvement

#1290

Address

Dunfermline

Opening Hours

Tuesday	8:30am - 5:30pm
Wednesday	8:30am - 5:30pm
Thursday	8:30am - 5:30pm
Friday	8:30am - 5:30pm
Saturday	8:30am - 2pm

Telephone

+447500171558

Website

http://www.gsg-performance.co.uk/

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