LL/Ian - my latest quote for Firestone Military NDT or Ford Script bar treads in 6 x 16 was $220 - think it was from Antique tyres - so $110 sounds like a bargain.
For those looking for 750x16 bar treads (I think - have asked the question) there's a full unused set on Defender rims on ebay right now - search 'land rover' - $650.
Gromit I'd be interested in any news on the 650x16s from India.
Thanks
D

