Royal Enfield Thunderbird Twins Common Problems
Known issues to inspect before buying a used Royal Enfield Thunderbird Twins. What to check and how much repairs cost.
Electrical gremlins, flickering lights, dead battery
MODERATECheck all lights, horn, indicators work at viewing
Fix cost: $50-$200
Engine oil leaks from rocker box gaskets
MODERATEInspect top of engine for oily residue or seepage
Fix cost: $80-$150
Gearbox clunky, false neutrals, hard shifting
MODERATETest all gears cold and warm during test ride
Fix cost: $100-$300
Vibration loosening bolts, exhaust brackets crack
MINORWiggle exhaust, check all visible bolts for tightness
Fix cost: $30-$100
Pre-Purchase Checklist
☐Service history present and consistent
☐Test ride minimum 20 minutes including highway
☐Check frame for cracks near engine mounts
☐Verify speedometer, odometer functioning correctly
Decent cruiser, needs attentive maintenance, avoid neglected examples