The Singapore fitment guide: which mounts work, the 30-second clearance check, and what to do if yours won't fit.
Short answer: Yes — a bolt-on OBU lock fits most Singapore motorcycles. MOTOLOCK fits standard OBU units on handlebar, mirror and windscreen mounts. The only common problem is a tank mount where the OBU sits recessed with less than ~20mm of clearance over the card slot — that takes a 30-second check. If yours won't fit, repositioning the OBU at an authorised workshop fixes it. MOTOLOCK is the only metal OBU lock in Singapore: 2mm SUS201 stainless steel, tamper-proof screws, real padlock mechanism, SGD 19.90.
"Will it fit my bike?" is the first question every rider asks before buying an OBU lock — and it's the question most listings dodge. Shopee's best-selling OBU lock even warns buyers: "OBU on tank mount is unlikely to fit." This guide tells you exactly which mounts work, how to check yours in 30 seconds, and what to do if it doesn't fit.
In Singapore, the ERP 2.0 OBU is mounted in a few common positions. Here's how each one works with a bolt-on lock:
Why ~20mm? A lock box adds roughly 20mm of depth over the card slot — the steel shell plus the padlock mechanism. If there's at least that much open space in front of the slot, it fits. If the slot is buried inside a tight bracket, it doesn't.
No tools needed. Stand in front of your bike and look at the OBU's card slot:
If all three check out, you're good. If the slot is recessed inside a bracket with no room, read on.
Two honest options, in order of preference:
What NOT to do: buy a plastic cover "lock" because it's thinner. A plastic cover that fits a tight mount is still just plastic — it snaps or pries off by hand in seconds, and a visible fake lock signals to thieves that your card is worth stealing. A tight fit is not worth a false sense of security.
Every serious OBU lock listing in Singapore gets asked the same thing: "will this fit my bike?" It's the question that decides whether riders buy. And it's exactly why the plastic covers keep winning on paper — they're thinner, so they fit more mounts. But thinness is the whole problem: a cover that fits everywhere protects nowhere. The trade-off riders actually want is a lock that fits their mount and can't be pried open — which is what metal gets you.
MOTOLOCK is the only OBU lock in Singapore that is full 2mm SUS201 stainless steel with tamper-proof screws and a real padlock mechanism. If your mount has the clearance, it's the only lock that's actually a lock.
Mostly yes. Handlebar, mirror and windscreen mounts fit a bolt-on lock. Tank mounts need a 30-second clearance check — the lock adds ~20mm over the card slot. If there's a thumb's width of open space in front of the slot, it fits.
MOTOLOCK fits standard Singapore OBU units (the ERP 2.0 on-board unit) on handlebar, mirror and windscreen mounts. Tank-mount units recessed in a tight bracket may not have enough clearance — measure first, or reposition the OBU at an authorised workshop.
Check the clearance: if the card slot is recessed with less than ~20mm of open space in front of it, a lock won't fit. The fix is repositioning the OBU at an authorised workshop — LTA allows it, and it usually makes the card easier to reach anyway.
No. A plastic cover that fits a tight mount is still just plastic — it snaps or pries off by hand in seconds. A fake lock also signals to thieves that your card is worth stealing. If a real lock won't fit, take the card with you instead.
Stand in front of the bike: can you slide a card in and out freely, is there a flat surface around the slot, and is there roughly a thumb's width of clearance in front of it? Three yeses and a lock fits. Full install guide here.
MOTOLOCK is the only OBU lock in Singapore that is full 2mm SUS201 stainless steel with tamper-proof screws and a real padlock mechanism — the only real lock, not a plastic cover. Bolt-on install, quick release in under 2 seconds, weatherproof powder coating.
One-time purchase. SGD 19.90. Top up $120, leave it in, forget about it.
BUY MOTOLOCK — $19.90