Under-seat saddle bag
The set-and-forget bag for your flat-fix kit. Tucks under the saddle so a tube, levers and a multi-tool are always on the bike when you need them.
Wired's one universal recommendation for every bike: a small under-seat bag holding everything you need to fix a flat by the roadside — a spare tube (sized for your wheel), two tire levers, a patch kit, and a compact multi-tool. Mount it once and forget it's there until the day it saves your ride.
Sizes run from micro (tube + levers only) to wedge packs big enough for a mini-pump and a CO2 inflator. A BOA dial or single secure strap keeps it from rattling. Note that some e-bikes with a dropper post or a rear rack leave little clearance under the saddle — a smaller bag or a rack-mounted tool roll may fit better.
Where to buy
Two paths — match your spend to the bike. Quality picks last longer and protect resale; affordable picks get you riding safely today.
Pro tips from our test team
- Match the spare tube to your wheel and valve before you need it — not at the roadside.
- A rattle means something will wear through; cinch it tight or pad the contents.
- Stash a $20 bill and a tire boot in there too — cheap insurance.