AP - 2 wheels 12" 4 holes - 26*7.5 -12 - and 2 wheels 16" - 31*9.50 -16 - without wheel hub rims 12" 4 holes - dimensions: D=70 mm - I=100 mm - d=13 mm rims 16" 6 holes - dimensions: D=90 mm - I=120 mm - d=13 mm - TX1500/TX1510/TX2160/B1500/B1502 : Attention: Original Rear Wheel 18" - Ratio Front/ Rear OK - external wheel Ø 12 ": 600 mm 16": 770 mm - L 12" 180 mm - L 16" 210 mm ! delivered with wide front tyres - see also YKITR1216GNB with narrow front tyres.
in 4wd position: if you hear noise (transmission): this means that the front axle / rear axle ratio is modified due to the size of the tyres (this ratio can vary by around 6%)
solution: disengage the 4wd system.
(the purpose of lawn tyres is to drive smoothly, without any powerful traction effort) to avoid damaging the lawn: 4wd traction is therefore not recommended.
