Triumph has released a factory, fully-homologated big bore kit for their Thunderbird model.
Fitting the kit takes the cc, bhp and torque of the standard T-Bird from 1600cc, 85bhp and 106ft-lbs respectively, to 1700cc, 97bhp and 115ft-lbs.
If you already have a T-Bird, the kit can be fitted by you dealer for around £479.99. If not, you can buy the 1700cc version straight from the factory for around £11, 799.
If you want the ultimate Thunderbird, the 1700cc model is, now, undoubtedly the one to have.
Read the full story in next weeks MCN, out Wednesday 17th March.