In 2022, the National Insurance Crime Bureau recorded 54,736 motorcycle thefts across the United States - an average of 4,561 stolen each month.1 Knowing how to use motorcycle chain lock routing correctly is one of the most direct defenses available, yet most riders make one critical error: they leave slack in the chain. This article sits alongside the Proper Bike Locking overview and goes deep on the single detail that separates a chain that holds from one that doesn't - routing and closing it so a thief has nothing to work with.
Quick Answer
How do you use a motorcycle chain lock so it can't be slackened?
Thread the chain through the rear wheel (not the front) and loop it onto a ground anchor or fixed post, then pull every link tight before closing the lock at least 30 centimetres above the ground. According to crime research underpinning the Sold Secure testing methodology, the average thief gives up after 2.5 minutes.3 A correctly routed chain denies the stable surface a thief needs to ever reach that mark.
Key Takeaways
- The NICB recorded 54,736 US motorcycle thefts in 2022, rising 7% year-on-year - making correct locking technique more important than choosing a brand.1
- A chain lying on the ground gives a thief a stable working surface; routing it taut and off the floor removes that advantage entirely.
- Sold Secure Gold-certified chains are tested for 5 full minutes - twice the 2.5-minute threshold at which most thieves give up - but only when there's no slack to exploit.3
- Always thread through the rear wheel: the front wheel can be removed in seconds and is never the right anchoring point.
Why Chain Slack Is a Thief's Best Friend
In 2024, the UK police-backed Secured by Design scheme confirmed the core principle in writing: keep the chain taut to an immovable object, because a chain trailing on the ground can be cut with an angle grinder far more easily than one kept taut and elevated.5 Slack is not a minor inconvenience for a thief. It's the working condition every attack method depends on.
When a chain sags on the ground, a thief gets three things at once. First, the chain rests against a solid surface, which means it can be struck, pried, or held steady under a tool. Second, the excess length creates room to reposition after each cut attempt. Third, a thief can prop the chain against a kerb or the base of a post and use the ground itself as a vice. A chain kept taut and raised off the floor denies all three of these. The links can't be steadied, repositioned, or braced - and the attack stalls.
In April 2022, Motorcycle News tested several chain grades against an angle grinder in a vice. A 13mm chain was cut in roughly 30 seconds under controlled conditions.4 The vice was the critical variable: it held the chain rigid and let the grinder bite cleanly. Remove the vice - which is exactly what taut, elevated routing does - and every attack becomes slower and less certain. That's not a theory. It's the reason Sold Secure's own testing methodology exists: crime research shows the average thief gives up after 2.5 minutes,3 so a Sold Secure Gold test runs for five full minutes - to confirm the chain outlasts that window even under sustained attack conditions.
The gap between a chain that survives and one that doesn't is mostly routing, not grade. A Sold Secure Gold chain routed slackly on the ground underperforms. A well-routed chain at a lower certification level outperforms a heavier chain left drooping. Grade matters. Routing matters more.
"Even though you can't completely control when criminals target you or your vehicle, you can help deter would-be thieves by taking proactive, easy, and effective steps to prevent these thefts."
David J. Glawe, President and Chief Executive Officer, National Insurance Crime Bureau1
What You Need Before You Start
Before threading a single link, confirm you have three things: a chain that's rated for motorcycle use, a fixed anchor point at or near your parking location, and enough chain length to reach the anchor without drooping. If any of these is missing, the technique in this guide won't deliver its full protection.
Chain requirements
For motorcycle security, choose a chain holding at least Sold Secure Silver rating - ideally Sold Secure Gold. Sold Secure is an independent UK testing body; its Gold certification requires the chain to withstand a sustained multi-tool attack for five full minutes, including a machine-based crop test confirming at least 7 tonnes of cutting force is resisted.3 No internal brand scale, however it's worded, is a substitute for that independent verification.
Chain diameter: for a motorcycle, 10mm links or heavier. Thinner chains suit bicycle-grade risk only. The neoprene or textile sleeve matters too - it protects the motorcycle's painted surfaces during routing and should be intact along the full length.
Anchor requirements
A ground anchor set in concrete is the strongest fixed point. The next best options are a steel bollard with a concrete base or a heavy-gauge metal post that's been sunk and sealed. Street furniture varies widely. Test any anchor before trusting it: if it flexes, moves, or can be lifted, it's not adequate.
Estimated time and difficulty
Once the routine is practiced, the full five-step process takes under 90 seconds. No special tools are needed. The only variable is locating a suitable anchor at your parking spot, which may need some scouting in advance.
Step 1: How to Use Motorcycle Chain Lock at the Right Security Rating
By the end of this step, you'll have a chain whose certification level is confirmed and whose length is matched to the distance between your motorcycle's rear wheel and the anchor you'll use. These two numbers - certification level and length - drive every subsequent decision.
Match the certification to the risk level
In high-theft urban areas, Sold Secure Gold is the minimum worth using. Sold Secure publishes a list of approved products by category; check the Powered Cycle or Motorcycle heading rather than Bicycle if the chain is intended for moto use. The rating tells you exactly which tool types and force levels the chain has been independently tested against. A chain without a listed independent certification has been tested only by its manufacturer - and those internal ratings can't be compared across brands or independently verified.
The Viking Gold 110 holds Sold Secure Bicycle Gold and is built around hardened steel links encased in a weather-resistant neoprene sleeve with a patented magnetic lockhead shutter that keeps the keyhole sealed against dirt and water. At 110 cm, it gives enough reach for most standard parking scenarios while keeping the chain short enough to stay off the ground when routed correctly.
For tighter routing - rear wheel to a floor anchor within 40 cm - the Viking Gold 90 runs 90 cm and is marginally easier to keep fully taut. For wider posts, multi-bike setups, or anchors further from the wheel, the Viking Gold 140 at 140 cm adds the reach without sacrificing the same hardened-steel specification.
Matching chain length to anchor distance
Measure or estimate the distance from your rear wheel to the anchor. The chain needs to pass through the wheel, loop to the anchor, and return to the lockhead - with all of that kept off the ground. A rough guide:
| Anchor scenario | Recommended minimum length |
|---|---|
| Floor anchor within 50 cm of the rear wheel, chain looped through spokes only | 90 cm (Viking Gold 90) |
| Floor anchor within 70 cm, or chain looped through swingarm and wheel | 110 cm (Viking Gold 110) |
| Wide post, frame and rear wheel loop, or two motorcycles to one anchor | 140 cm (Viking Gold 140) |
Err toward the shorter chain when the length is borderline. More chain means more potential sag. If 90 cm is enough to reach the anchor and keep everything taut and off the ground, don't use 140 cm.
Step 2: Thread the Chain Through the Rear Wheel
By the end of this step, the chain will be running through the rear wheel in a way that means the wheel can't be removed even if the lock is somehow defeated - and that the chain can't be lifted clear of the bike without moving the bike itself.
Use the rear wheel, not the front
UK police guidance confirms this directly: use a chain lock through the back wheel, because the front wheel can be removed.5 On virtually every modern motorcycle, the front axle can be freed in under a minute with basic tools. A chain through the front wheel therefore secures the wheel but not the motorcycle - a thief lifts the front end, removes the wheel from inside the chain, and wheels the bike away. The rear wheel is connected to the frame through the swingarm and final drive; removing it requires tools and time that a thief on the street won't spend.
Threading technique
Feed the free end of the chain between the spokes of the rear wheel, starting from the inside of the wheel arch. Pass it through until both ends emerge on the anchor side, with the chain running across the inside of the rim. This routing means the wheel itself becomes part of the anchor structure: the chain bears against the rim from inside if pulled outward.
On motorcycles with a wide swingarm gap, thread through the gap between swingarm and tyre instead of through the spokes. This is faster on some bikes and equally effective as long as the chain can't slip over the tyre sidewall. Do not loop the chain around only the tyre sidewall: a tyre can deflate or be cut, allowing the chain to slide off. The route must pass through the structural wheel so that removing the chain requires removing the wheel first.
Check the chain is captured, not just encircling
After threading, pull gently on both ends. You should feel resistance from the wheel structure, not just friction. If the chain slides freely around the tyre without catching anything structural, re-route it.
Step 3: Anchor to Something That Won't Move
By the end of this step, both ends of the chain are committed to the anchor point and the route between wheel and anchor is fixed. The motorcycle can't be moved without lifting it - and lifting it to break the anchor is a different, noisier, and more conspicuous operation than cutting a slack chain.
What makes an anchor adequate
A ground anchor bolted through a concrete floor resists any upward or lateral force and is the highest-return single investment for a regular parking spot. Sold Secure-approved ground anchors are listed separately on the scheme's website.
Street infrastructure varies. A steel bollard set in concrete is generally adequate. A thin-section signpost set in a grass verge is not: it can be levered or lifted out. Before relying on any street fixture, push hard at the base. No movement, no flex: use it. Any give at all: find another anchor.
Routing from wheel to anchor
Pull both ends of the chain to the anchor side. The chain forms a loop: in through the wheel, out to the anchor, and the lock closes where the two ends meet. Keep the path as short as possible - every extra centimetre is potential sag.
For a ground-level anchor (floor ring or low bollard), route the chain so it exits the wheel upward and angles down to the anchor - not draped horizontally. The chain should form an inverted V: rising from the anchor, through the wheel, and back down, with the lock at the top. This keeps the lock elevated and the chain off the ground.
"Secure your bike, with the lock taut to an immovable object such as a ground anchor or street furniture. This will stop thieves from cutting a lock trailing on the ground using an angle grinder."
Secured by Design, UK Police-Backed Crime Prevention Scheme5
Parking in locations without a fixed anchor
When no fixed anchor is available - a festival stop, an overnight in an unfamiliar street - anchor to the most structurally secure fixed object you can find. If nothing adequate exists, route the chain through the rear wheel and loop it around the frame and swingarm. This won't secure the motorcycle to a fixed point but slows any team planning to lift it into a van: wheel and frame are locked together.
Step 4: Take Out Every Link of Slack
By the end of this step, the chain has zero ground contact and no drooping section anywhere between the wheel and the anchor. This is the step most riders skip or rush, and it's the one that determines whether the routing in steps 2 and 3 actually delivers its protection.
The taut check
With both ends of the chain at the anchor, before closing the lock, lift the entire chain to its tightest natural position. On a correctly routed chain, this means pulling the loop up and inward so the chain forms a firm arc between the wheel and the anchor with no sag at the midpoint. Hold that tension and note where the lockhead needs to close.
If the chain is too long for the anchor distance, a section will sag below the tightest possible line even when you hold both ends up. The fix is a shorter chain (see the length guide in Step 1) or an anchor point further from the wheel to take up the excess.
The ground test
Once the lock is closed at the taut position, crouch down and check the lowest point of the chain. It should sit at least 10 cm above the ground - ideally 20 cm or more. If any section of the chain rests on or brushes the ground, the routing is giving a thief a working surface. Reopen the lock, reposition the chain loop to reduce the sag, and re-close.
Why the chain's midpoint is the real attack target
Many riders focus on the lock end and the wheel end. The attack point is neither. It's the midpoint - the lowest hanging section - where maximum leverage exists, where a bolt cutter gets its best grip, and where an angle grinder finds the most stable contact. A chain with elevated ends but a drooping middle is functionally the same as a chain on the ground at that sag point. The taut check should focus on the midpoint first.
Step 5: Close the Lock Off the Ground and Out of Reach
By the end of this step, the padlock or integrated lockhead is positioned so its body, shackle, and keyhole are all raised off the ground and oriented so they can't easily be levered, pried, or accessed directly.
Lock height
Aim for at least 30 cm off the ground - higher is better. An angle grinder and bolt cutter both need a stable brace. A lock sitting 30 cm in the air with no ground contact forces the attacker to hold tool and lock simultaneously without any reference surface - meaningfully harder than attacking a lock resting on pavement where the ground acts as a brace.
Position the lock at the highest point of the chain's arc. On an inverted-V routing this is naturally the top of the loop. If the lock sits low because the chain descends from the anchor first, restructure the routing: the lock closes at the peak, not at ground level.
Keyhole orientation
This is the detail most chain lock guides don't mention. When you close the lock, orient the keyhole so it faces inward - toward the motorcycle frame or toward the anchor post - rather than outward and accessible. A keyhole facing outward can be reached by a lock pick or a freeze spray can without any repositioning. A keyhole facing the anchor post can't be approached directly; the attacker has to work around the chain and the anchor simultaneously.
On locks with an automatic keyhole shutter - such as the Viking Gold series' magnetic shutter - this is less critical because the keyhole closes mechanically, but the orientation principle still holds. A lock body presented face-out on an open side is always easier to attack than one presented against a solid surface.
Lockhead positioning on the chain
If your chain has a fixed lockhead, close it as close to the anchor as possible. A lockhead jammed between chain and post can't be rotated or repositioned, limiting the angles available for attack. A lockhead hanging freely in open air - even at height - is always easier to work on than one pressed against a fixed surface.
Common Mistakes That Leave Your Chain Vulnerable
Most chain lock failures trace to one of five errors. All of them are fixable with the routing steps above - but knowing which mistake is most likely for your current setup helps you apply the right check.
Leaving the chain on the ground
This is the most common error and the one that gives attackers the most options. A chain on the ground can be attacked with an angle grinder, bolt cutters, or a hydraulic jack depending on the chain grade. A thief can position it, brace it, and work steadily. The ground itself becomes a workshop surface. Every step in this guide exists to eliminate this single condition.
Why it happens: riders thread the chain and close the lock without pulling everything taut first. The fix: do the taut check (Step 4) before closing the lock, every time.
Locking through the front wheel
It feels intuitive to use the front wheel because it's easier to reach from a standing position. But as UK police guidance notes, the front wheel can be removed - which means a chain through the front wheel secures the wheel, not the motorcycle.5 After a thief removes the front wheel from inside the chain, the motorcycle can be walked away on its rear wheel or lifted into a vehicle. The rear wheel, anchored through the swingarm, can't be removed without dismantling the final drive - a different category of effort.
Using a chain that's too long for the anchor distance
A 140 cm chain connecting a wheel and an anchor 40 cm away will always have excess length, and that excess becomes sag on the ground. The chain length must match the routing geometry. If you can't change the chain, change the anchor: find one that creates a longer path (for example, routing over a higher point on the motorcycle frame before going to the anchor) to take up the slack legitimately.
Anchoring to removable street furniture
Bollards and signposts vary enormously in how they're installed. A bollard bolted into concrete is as solid as a ground anchor; a bollard sitting in a pavement sleeve can be lifted out in seconds. A signpost set in grass is often leverable by hand. Before trusting any street furniture, push laterally at the base: a secure point doesn't flex under body weight.
Locking only the frame without including the wheel
A chain routed only around the motorcycle frame and an anchor, without passing through the wheel, secures the frame but leaves the wheels free. Thieves regularly detach the rear wheel and move the bike on a wheeled dolly or flatbed. The rear wheel threading in Step 2 is what closes this gap - it means both the frame and the wheel are committed to the anchor, and neither can be separated from the chain without tools.
How to Tell You've Done It Right
Run through this four-point check after closing the lock:
- Ground clearance. The lowest point of the chain is at least 10 cm off the ground. No section rests on or drags against the pavement.
- Wheel capture. The chain passes through the rear wheel structure - between the spokes, or through the swingarm-tyre gap - not merely around the outside of the tyre.
- Lock height. The lock body (including the shackle and keyhole) sits at least 30 cm above the ground.
- No free movement. Trying to slide the chain along its routing should produce immediate resistance. The chain should feel rigid in the loop, not loose enough to shift position.
If all four checks pass, the chain is routed to a standard that denies thieves the working conditions they need. The certification level of the chain determines how long it takes to defeat under direct attack; the routing determines whether that certified resistance can actually be reached in a real street scenario.
In 2024, UK motorcycle theft fell 7.9% year-on-year - from 17,188 incidents in January through August 2023 to 15,832 in the same period in 2024.2 The MCIA noted that recovery rates simultaneously declined, suggesting more stolen motorcycles are being exported rather than broken for parts locally.6 Correct chain use at the point of parking is the most actionable response an individual rider can make.
Frequently Asked Questions
How long should a motorcycle chain lock be?
Match the chain length to the routing distance between your rear wheel and anchor. For a floor anchor within 50 cm of the wheel, 90 cm is usually enough. For a post 60-70 cm away, or when the chain routes through the swingarm and wheel, 110 cm gives more flexibility. Use 140 cm only when the anchor is further away or you're securing two motorcycles together; excess length creates sag that lands on the ground.
Should I use the front wheel or the rear wheel for a motorcycle chain lock?
Always use the rear wheel. UK police guidance confirms that the front wheel can be removed quickly, meaning a chain through the front wheel secures the wheel but not the motorcycle.5 The rear wheel connects to the frame via the swingarm and final drive, so removing it requires significant tools and time - making it the correct anchoring point for a chain lock.
What is Sold Secure Gold for motorcycle chains?
Sold Secure is an independent UK testing body that assesses security products against standardised attacks. A Sold Secure Gold rating for motorcycle chains means the chain has withstood a sustained multi-tool attack for five full minutes in independent laboratory conditions - twice the 2.5-minute window at which crime research shows the average thief gives up.3 It's the minimum rating recommended for high-theft urban parking.
Can a thief cut through a Sold Secure Gold chain?
Any chain can theoretically be cut given enough time and tools - but that's exactly what the Sold Secure test measures. A Gold-rated chain is certified to resist a full five-minute attack under test conditions.3 In a real street scenario with noise risk, passersby, and no stable working surface, that resistance is higher - provided the chain is routed taut and off the ground so the attacker can't brace a tool against the floor.
Do I need a ground anchor to use a motorcycle chain lock?
A ground anchor is the strongest fixed point and the first choice for any regular parking location. For street parking without a permanent anchor, use the most structurally secure fixed object available - a concrete-set bollard or a solid metal post. A chain routed through the rear wheel and locked to a sound street fixture still gives significant protection; the key variable is that the anchor itself doesn't move when pushed or lifted.
Limitations and Edge Cases
- This guide covers standard chain-and-padlock routing for motorcycles parked on public streets or in private locations with a fixed anchor. Specialist scenarios - garages with wall mounts, motorcycle trailers, or storage containers - may require different routing geometry.
- Chain locks are one layer of a complete security setup. For motorcycles in high-theft zones, a second lock type (disc lock with alarm, handlebar lock) used simultaneously increases the time and tool requirement substantially.
- The Sold Secure testing figures referenced here apply to UK-scheme ratings. Equivalent independent certification schemes operate in other markets (ART in the Netherlands, FUB in France, Varefakta in Scandinavia); their specific test criteria differ at the detail level but follow similar resistance-duration principles.
References
- National Insurance Crime Bureau - "Lock Up Your Bikes: Motorcycle Thefts Rise for the Third Consecutive Year," NICB press release via PRNewswire, August 4, 2023.
- Motorcycle Industry Association - "Industry Initiatives Curb Motorcycle Theft," MCIA press release, October 3, 2024.
- Sold Secure - "Why Do We Test," Sold Secure official methodology page (soldsecure.com), standing page.
- Motorcycle News - "Motorbike Security Video Special: Angle Grinder vs Chains and a Ground Anchor," MCN, updated April 4, 2022.
- Secured by Design - "Vehicle Crime Products: Locks, Chains, Covers," Secured by Design (UK police-backed crime prevention scheme), standing guidance page.
- National Insurance Crime Bureau - "Motorcycle and Boat Theft," NICB standing prevention page (nicb.org).
Conclusion
Routing a motorcycle chain lock correctly - rear wheel, taut to a fixed anchor, lock body elevated off the ground - closes the working conditions thieves depend on. A Sold Secure Gold-rated chain routed this way delivers the five minutes of resistance it's been certified for; the same chain left sagging on the ground delivers far less. The technique takes under 90 seconds once practiced.
For a broader look at how chain locks fit alongside other security methods and lock types, see the Proper Bike Locking overview for context on layered locking strategies.
