Bell Catalyst 300 vs OnGuard Brute LS
Two sub-$30 U-locks aimed at students and casual commuters. Both come with frame brackets and anti-theft offers, but the OnGuard's quad-locking shackle and Sold Secure Silver rating put it a notch above the Bell on real-world security.
- 8 in hardened steel shackle
- Single-bolt key lock
- Vinyl coating to protect frame finish
- Quick-release carrying bracket included
- $500 anti-theft protection offer
Sizing: 8" shackle window fits frame + rack post for typical campus and city locking.
MSRP: $25-35 · Amazon ~$26.84
- Sold Secure Silver rating
- 16.8 mm TriRadius hardened steel shackle
- X4P quad-locking mechanism (4-sided)
- Inner 3.5" x 7.5" (9 x 19 cm)
- Lifetime warranty
Sizing: Inner 3.5" x 7.5" - mid-size U-lock that fits frame + single wheel through the U + a fixed rack.
MSRP: $45-60 · Amazon ~$19.59
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Side-by-side spec sheet
| Aspect | Bell Catalyst 300 U-Lock | OnGuard Brute LS 8004 | Winner |
|---|---|---|---|
| Security rating | Manufacturer rating only | Sold Secure Silver | LS 8004 |
| Shackle diameter | Standard hardened steel | 16.8 mm TriRadius | LS 8004 |
| Locking mechanism | Single bolt (key) | X4P quad-locking (4-sided) | LS 8004 |
| Inner shackle window | 8 in long | 3.5" x 7.5" | Tie |
| Frame mount included | Quick-release bracket | Yes | Tie |
| Anti-theft / warranty | $500 anti-theft offer | Lifetime warranty | LS 8004 |
| Amazon price | $26.84 | $19.59 | LS 8004 |
The verdict
Pick the OnGuard Brute LS 8004 if you ever lock outside in a city - the 16.8 mm TriRadius shackle, X4P quad-locking mechanism, and Sold Secure Silver rating all outclass the Bell at a similar Amazon price. Pick the Bell Catalyst 300 if you only need a deterrent for low-risk indoor or campus parking and want the simpler single-bolt mechanism with Bell's $500 anti-theft offer.
Best value
OnGuard Brute LS 8004 - cheaper on Amazon, Sold Secure Silver rating, and quad-locking shackle make it the obvious value U-lock at this price.
Best performance
OnGuard Brute LS 8004 - thicker TriRadius shackle and 4-sided X4P locking resist leverage attacks far better than the Bell's single-bolt design.
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