Triumphrat

birdslayer

I have bought a TR6C 650 and am getting ready to do a restoration but wanted to begin with my serial number. left side of bike just below the cylinder reads, TR6C just below that PC 05165. everywhere i have looked has not had any reference to the letters PC. any help would be appreciated.

roccar

Hey, this is one that I can help with.

In 1969 Triumph changed to a lettering system where the First prefix letter indicates month of manufacture & the Second prefix letter indicates model year, then followed by the engine number.

P = November
C = 1969

roccar

For further info, see http://www.britishspares.com/41.php

As Triumph's model year started approx Sept of the previous year, this means your bike was made in November 1968, but still means that it is a 1969 model.

Also, have another look at the engine serial number, as the 1969 model had engine numbers DU85904 - DU90282

roccar

Last comment from me.

I found another bit of info from a parts catalogue for 1969 that says:

1969 Unit 650cc Parts catalogue USA Ref: book 26
Triumph TR6R Tiger 650, TR6C Trophy 650
T120R Bonneville 120
79 pages. Illustrated. Catalogue No.7
From Engine No. DU85904 to JC24849
USA edition

This suggests a different serial number range than the one I told you in my last response (ie DU85904 to JC24849, rather than DU85904 - DU90282). JC translates to a build of August 1969, which would of been the last month they built the 1969 model. This also makes sense why your early built 1969 model has a low number.

Can anyone else shed more light on this?

The actual engine number PC 05165

DAGAD

Roccar, your second post of NOVEMBER 1968 IS CORRECT. Birdslayer check your PM's
Roy.