Seatylock Beginner's Guide 2026: Your First Real Bike Lock, Step by Step
You finally have a bike you care about. Maybe it's a commuter with a new chain, maybe it's an e-bike that cost more than your first car. The first night it sleeps outside a café or an office, you'll check the window three times. That nervous feeling is the moment to get your first real lock right.
If you've never shopped for one, the jargon comes fast: MLA levels, ART stars, Diamond, folding, U-lock. This beginner's guide keeps it simple. We used Seatylock's own FAQ, its shop sections and its product listings on seatylock.com, checked on October 20, 2026, to walk you from "which kind of lock?" to the first ride home. Prices are in USD.
Who This Guide Is For
- First-time buyers who've only ever used a cheap cable lock.
- New e-bike owners who suddenly have a lot more to protect.
- Scooter riders and casual cyclists who want something light.
Step 1: Learn the Three Lock Shapes
Seatylock sells three main kinds of lock, and each solves a different problem:
- Folding locks (Foldylock). Hardened steel plates joined by rivets that fold into a compact bar and open into a loop. The brand says they balance security, portability and weight, and every Foldylock ships with a case that mounts to the bike.
- U-locks (Mason, and the new Ultra D5). A rigid shackle and crossbar. Less reach, but Seatylock's Masons carry its highest MLA level.
- Chain locks (Viking). Flexible, so they wrap around odd shapes like lampposts and scooter stems.
There's also the brand's original idea, the Seatylock saddle, a seat that comes off the post and turns into a lock. More on that below.
Step 2: Match the Lock to What You Ride
Seatylock's FAQ says the right lock depends on your bike type, the bike's value, where you park, how long it's left alone and how portable you need the lock to be. Helpfully, the shop is organized the same way, with sections for different kinds of bikes:
| Seatylock shop section | What you'll find there | Start with |
|---|---|---|
| For Rat Bikes | Lighter folding locks and Viking Silver chains | Foldylock Mini ($85) |
| For Everyday Bikes | Foldylock Compact, Mason 140 and 180, Viking Silver | Mason 180 ($80) or Foldylock Compact ($95) |
| For Desirable Bikes | Foldylock Forever and Elite, Viking Gold, every Mason, Ultra D5 | Foldylock Forever ($135) |
| For E-bikes | Forever, Elite, Classic, Viking Gold, Mason 220 and 300, Ultra D5 | Foldylock Forever or Mason 220 ($85) |
| For Scooters | Mini, Compact, Clipster, Mason 140/180, Viking Silver 90 | Foldylock Mini or Viking Silver 90 ($65) |
Rule of thumb: the more the bike costs and the longer it sits alone, the further down that table you should shop.
Find the Seatylock for Your Bike →
Step 3: Read the Rating Like a Pro
This is where beginners get lost, so here's the short version from Seatylock's FAQ:
- MLA levels come from an independent UK testing and certification program managed by the Master Locksmiths Association (MLA). Its levels run Silver, Gold and Diamond. Every Seatylock lock except the standard Seatylock saddle model carries one.
- ART is a Dutch certification that the brand notes is often required by insurers. The Foldylock Forever and Elite hold ART 3 stars.
- Seatylock's 1–18 scale is the brand's own rating, aligned with that UK program. Seatylock itself recommends weighing independent ratings alongside any manufacturer scale.
The FAQ also lists further certifications for Foldylocks, including FUB and Velo SRA in France and VeloSure in Australia.
Step 4: Meet Five Starter Locks
Foldylock Mini ($85). The FAQ calls it ultra-compact, for short stops or as a second lock in lower-risk spots, rated MLA Silver. It comes in blue, black, dark grey and light grey. Buy this if you ride a scooter or a runabout bike.
Foldylock Compact ($95). A lighter folding lock for urban riders who put convenience first, also rated Silver, in six colors. Buy this if you commute on a modest bike and park in busy but watched places.
Mason 180 ($80). The U-lock Seatylock positions as the balanced choice for most commuters, rated Diamond per the brand. The mounting bracket is sold separately for $15. Buy this if you want the most rating for the least money.
Foldylock Forever ($135). The FAQ calls it the brand's highest-security folding lock, made for demanding environments and high-value bikes, including e-bikes, with MLA Gold and ART 3 stars. Buy this if your bike is the expensive kind.
Viking Gold 90 ($100). A chain with Gold-level certification. Buy this if the things you lock to are awkward shapes.
Seatylock Starter Locks
Four easy first locks, with USD prices on seatylock.com on October 20, 2026. Ratings are as stated by the brand.
Prices change often; the brand's site always shows the current price.
Step 5: Your First Day With the Lock
- Test before you ride. Seatylock accepts returns of unused items in original packaging within 14 days of delivery, so check the fit around your frame and usual rack indoors first.
- Mount it. Every Foldylock includes its own mounting solution, fitted with your bottle-cage screws or two included straps. The brand says the cases are rattle-free.
- Register your keys. You get three keys and a red Key Code Card. Registering within 3 months of purchase extends the 12-month warranty to 3 years, free.
- Store the card safely. Without that code, Seatylock can't cut new keys for you.
A quick reassurance for cautious buyers: the FAQ confirms that Foldylocks with a red ring are genuine Seatylock products sold through partner retailers, and the support team aims to reply within 2 business days.
The Curveball Option: A Saddle That Locks
The Seatylock Comfort ($69) is a wider saddle that, per the listing, quickly turns into a bike lock. It's a clever idea for leisure riders, but note the FAQ: it's the one Seatylock product without MLA certification. Treat it as a fun extra, not your main lock.
Beginner FAQ
Which Seatylock lock should I buy first?
For most commuters, a Mason 180 ($80) or Foldylock Compact ($95). For an e-bike or a pricey bike, start at the Foldylock Forever ($135).
Can two locks share one key?
Only if you buy a "2 units key alike" pack. Seatylock says it can't match a new lock to a key you already own.
Is shipping free?
The site banner offers free shipping across the US. Orders are dispatched within 2 business days, with US delivery estimated at 4–7 business days.
The Bottom Line
Your first proper lock comes down to three questions: what's the bike worth, where does it sleep, and how will you carry the lock? Answer them, shop the matching Seatylock section, look for an independent rating, then mount the case and register your keys on day one. Check our Seatylock deals page before you order.
How we wrote this: SweatproofGear researched Seatylock using its official FAQ, shop sections, product listings, prices and policies on October 20, 2026. Security ratings are as stated by the brand. We haven't personally tested these products and we don't invent ratings or discount codes. We may earn a commission if you buy through our links, at no extra cost to you.