What motorcycle modifications are legal in Singapore, LTA rules, costs, and what will void your insurance. Complete guide for SG riders.
Exhaust (LTA-approved)
$200–$800Aftermarket exhausts must comply with LTA noise limits (91dB static / 97dB drive-by). Buy from reputable brands with LTA-approved variants. Akrapovic, Yoshimura and SC Project offer SG-legal options.
Tyres
$80–$300 per setCan use any tyre brand as long as the size matches the log card specification (or approved alternative). Never fit tyres larger than log card spec without updating via LTA.
Handlebar Change
$50–$300Height/width changes are allowed within reason. Must not affect control or comfort. Very wide bars or extreme clip-ons may require LTA approval.
Seat & Bodywork
$100–$800Can be changed without LTA approval as long as the overall dimensions and appearance are not drastically altered. Colour changes don't require approval.
Brakes (Aftermarket)
$80–$500Higher-spec brake pads, braided lines, and oversized discs (via adapter) are allowed. Any brake modification must improve or maintain braking performance.
Suspension Upgrades
$200–$1,200Aftermarket shocks and forks are allowed. Spring rate changes and adjustable damping are legal. Height must remain within 10% of original.
🚫 Illegal / LTA Non-Compliant Modifications
Engine swap to higher displacement (requires log card update via LTA)
Removing emissions equipment (catalytic converter, EVAP system)
Excessively loud exhausts (above LTA noise limits)
Removing/modifying headlights so they don't meet LTA standards
Wider tyres beyond log card specification without LTA approval
Nitrous oxide (NOS) systems — illegal for road use in Singapore
Removing mandatory safety equipment (horn, mirrors, lights)