Like other tyre manufacturers, BKT has been working on substitute raw material solutions, mainly guayule and dandelion. BKT has opted for Dandelion because of its higher latex content. This plant grows annually even in moderate climates. Its roots contain about 15 per cent of latex, which can be used as raw material for making rubber.
OUR BLOG

Replacing pre-1940 tractor tyres sized 11.25, 12.75 or 13.5
3rd April 2018
On a couple of occasions, I have had customers looking for 11.25-28 tyres for their tractors. The first time this happened, we tried an 11.2-28 and a 12.4-28, but the customer always reported that while the tyres fitted the tractor was too low at the back and didn't look right at all.