315
people found this helpful, as of 2023
ranked #78,794 most helpful
out of 571,544,897 reviews
★★★★★
FYI shrader valves
Unscrew the gray cap.
Pull out the black insert(s). There should be two pieces but you may have to pull them apart.
Take the one with the point end and push it through the small hole of the cylindrical one.
Put the pair back into the pump with the larger hole facing out.
Reattach the cap.
the product in question
Topeak Pocket Rocket Master Blaster Bike Pump, Silver/Black, L x W x H 22.2 x 4.2 x 2.5 cm / 8.7” x 1.7” x 1.0”
4.4★ · 1,990 ratings, as of 2023