Triumph - Triumph GT6
The Triumph GT6 started off as a design exercise based on the Triumph Spitfire, turning it into a fastback coupe version, by bodywork designer Michelotti. After completion Triumph thought that the extra weight compromised the performance too much, so the Michelotti project was put to one side. But a few years later, in 1966, the project was resurrected as the the Triumph GT6, now fitted with a more powerful twin carburettor 6 cylinder 2 litre Vitesse engine. The extra power of this engine gave the Triumph GT6 a lively enough performance, although the swing axle rear suspension inherited from the Herald could be tricky, even when not at the limit. The Triumph GT6 Mk2 introduced in 1968 was improved in this area, along with the addition of 10hp resulting in a power output of 109hp. The GT6 Mk3 was available for 1970 and recognisable by it's flared wheel arches, full width bumper, flush door handles, and the different style steel wheels with slots in them - while under the skin the rear suspension was further improved to help the handling. Production of the Triumph GT6 went through to 1973.
Tyre size for the Triumph GT6 was initially the 5.20x13 which is equivalent to radial size 145R13. But a service bulletin from Triumph dated 1969 refers to the tyre size 155R13, and we have seen the 155R13 size listed in Dunlop and Michelin aftermarket lists, so we are confident that when radial tyres were used the GT6 was fitted with the 155R13 as standard. Many owners also ask for the slightly wider version 175/70R13 size, which has the same diameter. In addition, we have also supplied some GT6 owners with the slightly larger diameter 165R13 tyre size. Blockley makes high quality steel belted 145R13, 155HR13, 175/70VR13 and 165HR13 tyre sizes, all with correct tread patterns, which are the best handling tyres you can buy, guaranteed, and at great prices, so whatever size you might want we can supply, bearing in mind the factory radial fitment was 155R13 - see full details of all these superb Triumph GT6 tyre options at the links below:
