The product photo shows 3 boxes, but each box has 2 tubes, so I received 6 tubes. These tubes weigh 130g each and seem to work well with my 700 x 25C tires. 6 whistles at $24.95 = $4.16 per whistle. I've used Continental Race tubes in the past, which Revain sells for about $6 each (when buying sets of 4 or 5 tubes). The Continental tubes weigh 100g each and they work great with my tires too. If you don't mind a 30g weight penalty (per camera), these Revere cameras will save you a buck or two per camera. Before the pandemic, 130 gram tubes were $2 each at my local bike shop. Rubber prices have skyrocketed in the last year or so. Hopefully they'll be back to normal the next day. A stem height of 48mm is good for low to medium height rims, but not for tall aero rims.
Smartphone TECNO Pova 3 6/128 GB, Dual nano SIM, silver
64 Review
OnePlus 10 Pro 12/256GB CN Smartphone, Dual nano SIM, Emerald Green
75 Review
9/16" 3 Bearing FOOKER MTB Bike Pedals Non-Slip Platform Bicycle Flat Alloy For Road BMX MTB Fixie Bikes
58 Review
Continental ContiSportContact 5 215/50 R17 95W summer
60 Review
OneTigris Multicam Helmet Cover For Fast Helmets In Size M/L And L/XL - Protect Your Headgear With Cloth Cover In Multicam Print
31 Review
6" Foldable Half Face Airsoft Mesh Mask With Ear Protection And Military Tactical Lower Face Protection By OneTigris
41 Review
Maddogยฎ Sports Padded Chest Protector, Tactical Half Glove, & Neck Protector Combo Package
23 Review
MetalTac Airsoft Speed Loader With Capacity Of 100 Bbs
27 Review