Radiator Guard Union Jack For Triumph Street Twin Thruxton Speedmaster Bonneville T100 T120 - 2016 to 2024

The modern Triumph Bonneville family — built around the water-cooled parallel twin platform introduced in 2016 — shares a common radiator architecture across its many variants. On every model in the range, the radiator sits exposed between the frame tubes, with the cooling fins unprotected from road debris thrown by the front tire. A stone chip to the fin rows can cause a bent or kinked fin that reduces coolant flow, and a harder impact can puncture the core and force an immediate stop. This radiator guard mounts in front of the radiator core on all supported Triumph models, intercepting debris before it reaches the fins while maintaining full airflow through the cooling system.

The guard is fabricated from stainless steel mesh welded into a formed steel frame, finished in black powder coat. It mounts using the factory radiator bracket bolt positions — a direct bolt-on installation that requires no drilling, no frame modification, and no changes to the cooling system. The black finish integrates cleanly across all Bonneville family color schemes, whether the classic chrome-and-black of the T100 and T120, the stripped-back aesthetic of the Street Twin, or the flat-black builds common on the Bobber and Scrambler platforms.

Confirmed fitment covers the full Triumph Bonneville modern water-cooled range: Bonneville T100 (2016+), Bonneville T120 (2016+), Street Twin (2016+), Street Cup (2017+), Street Scrambler (2017+), Speed Twin (2019+), Thruxton 1200 (2016+), Thruxton 1200 R, Thruxton 1200 RS, Thruxton 1200 TFC, Bonneville Bobber (excluding 2022 to 2023), and Speedmaster (excluding 2022 to 2023). The 2022 to 2023 Bobber and Speedmaster use a revised front end configuration that changes the radiator bracket position — those two model years are not compatible.

Frequently Asked Questions

Does it fit the Thruxton 1200 R and RS as well as the standard Thruxton?

Yes. The Thruxton 1200, Thruxton 1200 R, Thruxton 1200 RS, and Thruxton 1200 TFC all share the same Bonneville platform radiator mounting geometry. The guard fits all four Thruxton 1200 variants using the same bracket bolt positions and requires no modification or adapter hardware for any of them.

Why are the 2022 to 2023 Bobber and Speedmaster excluded?

Triumph revised the front suspension and lower frame architecture on the Bobber and Speedmaster from the 2022 model year onwards, changing the radiator bracket mounting configuration. The guard is sized and drilled for the pre-2022 bracket geometry. A separate guard designed for the updated 2022+ Bobber and Speedmaster configuration is required for those bikes — this part does not fit them.

Free shipping on every order in the US. Every part is covered by a 1-year warranty and can be returned within 30 days of receipt.