Pro Bike Tool Aluminum Cage
Top PickWhat We Like
- Light at 48 grams for aluminum
- Holds 20–32 oz bottles without rattle
- Two-bolt install with oval adjustment
Worth Noting
- Matte finish scuffs clear bottles
- Mount
- Two bolts, oval holes
- Weight
- 1.69 oz
- Material
- CNC machined aluminum
- Bottle Fit
- 500–950 ml
Read the full review
Forty-eight grams of heat-treated aluminum, machined in one piece and finished in matte black: the numbers are ordinary for the category. What isn't ordinary is the give in the arms. Pro Bike Tool builds in roughly ±0.2 inch of flex, enough to swallow a 24-ounce insulated bottle and still clamp a thin-walled race bottle without rattling. The oval bolt holes matter too, since they let you slide the cage a few millimeters along the tube, which is often the difference between a bottle that clears your frame pump and one that doesn't.
Of the cages we mounted, this is the one we reach for first. A full bottle stayed put through washboard, expansion joints, and a stretch of gravel that has shaken looser cages apart, and the two-bolt install took about as long as threading two screws. It is the best balance of grip, weight, and price in this group, and it is the cage we keep recommending to anyone who has just bought a frame and needs to fill two bosses.
The thing to check before ordering is clearance. On a compact frame with a short seat tube, a tall bottle can foul the cage's shoulder before it seats all the way, and the oval holes only buy a few millimeters. Standard road, hybrid, and gravel frames won't notice. If yours is tight, the side-load cage below solves the problem in one move.
Bottom line: Buy this one first: it grips a full bottle over washboard, weighs 48 grams, and installs with two bolts, the best balance of grip, weight, and price in this group.