What causes Gear selector lever bolt loosens over time on the Triumph Speed Twin 900?

Wiggle gear lever, check for slop or movement Estimated fix cost: $20-$80

What causes Throttle body balancing issues causing rough idle on the Triumph Speed Twin 900?

Listen for uneven idle, surging at low RPM Estimated fix cost: $100-$200

Check battery voltage, look for melted wiring near unit Estimated fix cost: $150-$350

Inspect for brake fluid weeping around master cylinder Estimated fix cost: $80-$180

Known issues to inspect before buying a used Triumph Speed Twin 900. What to check and how much repairs cost.

MODERATE

Wiggle gear lever, check for slop or movement

Fix cost: $20-$80

MODERATE

Listen for uneven idle, surging at low RPM

Fix cost: $100-$200

SERIOUS

Check battery voltage, look for melted wiring near unit

Fix cost: $150-$350

MODERATE

Inspect for brake fluid weeping around master cylinder

Fix cost: $80-$180

☐Check service history and dealer stamps

☐Test ride for smooth gear changes

☐Inspect for oil leaks around engine cases

☐Verify recall work completed via VIN check

Generally solid, minor issues manageable with maintenance