ROCKBROS Ultralight Bottle Cage Review
This is the cage most riders should default to, because it is cheap, light enough not to matter, and backed by more owner evidence than almost anything in the category.
The verdictThe sensible default at ten dollars. Buy two, keep the screws, and spend the difference on a bottle that is actually worth having.
There is not much to a bottle cage, and the main way one fails a rider is by losing grip and ejecting a bottle on a rough surface. Owner reports at this volume are the best available evidence on that, and they describe grip as adequate for standard bottles on gravel while noting that oversized or very heavy bottles are a different question.
Being light is worth something here mainly because the alternative is not. A cage is one of the few places where the cheap option and the light option are the same option, and spending forty dollars more buys titanium and a marginal gram saving rather than better function.
The screws being included matters more than it should, because bottle boss bolts are the small part nobody has a spare of, and the wrong length either bottoms out before it clamps or protrudes through into the frame. Keep the spares somewhere you will find them, because the next cage you buy may not include any.
Composite cages age by losing tension and eventually cracking near a mounting boss, usually after a couple of seasons of UV and flex. At this price that is a replacement rather than a disappointment, and it is the reason to prefer two cheap cages over one expensive one unless weight is genuinely your constraint.
What works
- Very large body of owner evidence
- Light and cheap at the same time
- Mounting screws included
What doesn't
- Grip is marginal with oversized or heavy bottles
- Needs full vertical clearance to load
- Composite loses tension after a couple of seasons
Buy it if
Any frame with normal bottle clearance
Skip it if
A frame bag has taken your vertical space, or you carry heavy oversized bottles
Others we scored in this category
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