Honda FourTrax Rancher TRX420FA5 2019 Owner's Manual page 244

Specifications
Power Transmission
primary reduction
secondary reduction
final reduction
transmission ratio
final drive
Chassis & Suspension
caster
trail
tire size, front
tire size, rear
tire pressure,
front & rear (cold)
234 Technical Information
front
rear
1st
2nd
3rd
4th
5th
reverse
2°
0.2 in (4 mm)
AT24 × 8-1211
AT24 × 10-1111
front:
4.4 psi (30 kPa)
rear:
4.4 psi (30 kPa)
2.680
1.480
3.231
3.154
3.058
2.157
1.541
1.178
0.848
3.996
shaft
MAXXIS M977
MAXXIS M978