Triaxtremec

So I find myself riding farther and farther which is great but am always concerned about flats and mechanical issues. I usually carry a multitool on me but I'm curious to see what others are caring with them. Thinking of carrying my multitool, a knife, patch kit, and CO2 tire pump.

79pmooney

I bring a Gerber multitool; basically a small knife, hexes 3-6, patch kit, two tubes and a frame pump plus tools for any issues the bike may have. On my fixies I carry a 6" crescent wrench, peanut butter wrench or Pedro's Trixie. I've used both tubes and a patch more than once. (Three inflations at least.) Sometimes a spoke wrench.

Ben

Dave Cutter

I use a medium sized saddle bag crammed full of these handy items:

One spare tube
Two tire levers. One lever has a duct tape wrap on/around it.
Small scab patch kit
CO2 inflator and two canisters/cartridges
A bicycle specific multi-tool
Mini plier multi-tool (with small knife)
Two wire ties
Two handy wipes (from take-out food)
A two inch piece of white pencil
A tube of lip balm (for both lips and emergency bicycle lube)
A small swatch 2 1/2" X 2 1/2" of non-woven fabric
A cheap low security bicycle cable lock.

I should point out that I put the spare tube in a Ziploc sandwich bag (with a pinch of corn starch). Then inside a gallon Ziploc bag. I use the gallon bag to put the flat tube (and any other flat related trash) that I then stick in my jersey. The handy wipes I get free from the Chinese place are great for clean-up after too. The white pencil is great for marking/finding holes in tubes/tires. Duct tape is a great repair item (like wire ties)... as well as a tire boot. OK... I also hide a $20 in the saddle bag.

In a Ziploc bag... I carry in my jersey I keep a combo DL and health ins card (I scanned, printed. and laminated) a cell phone, a few bucks, and an emergency reading glasses card (that I can slip behind my cycling glasses).

09box

Spare tube, tire levers, patch repair kit, portable air pump, small wrench, bike multi tool, swiss army knife or small leatherman, pair of small pliers, wallet, cell phone, keys, chap stick, poncho.

thehammerdog

I often go commando....Bring nothing. No water, no tubes, no $......Just my phone to call home if I fail.
But if I plan on a long ride 20 plus miles I bring goodies, GU, tubes, $, water......

RadRob

I take my phone, a small frame pump, and a WaxeWerx Tool Roll containing: spare tube, patch kit, 2 x rubber gloves, 2 x alcohol wipes, 15mm flat wrench, Cannondale Multi-Tool, 11spd quick link, CO2 cart, 2 x tire wrenches, $20, and a toe strap. I want to add one of those cool Kevlar spoke repair kits and a emergency contact list. I suppose I also have lights and a water bottle.

The phone goes in the jacket and the tool roll hangs under the seat.

bikemig 

Cell phone, pump, patch kit, spare tube, booting material (a dollar bill works in a pinch), tire irons, and a multi-tool. On really long rides, I'll add a 2d tube.

BigC_82

I am looking to get the topeak survival bag on gravel/road bike.

GeneO 

Frame mini-pump plus this in a micro bag. I like the Lezyne stuff. Have their mini-pump too.

DirtRoadRunner

For "normal" shorter rides, in decent weather, this is all I carry:
-Spare tube
-Tire boots
-Topeak Multitool
-Leatherman
-Spare chain link
-Frame pump
-HALT Dog Mace
-Snacks
-Camera
-Phone

All of that fits in a small seatbag and a handlebar bag, with room to spare.

For more expedition type-rides, where the weather may be cold and/or rainy, I also carry this stuff:
-First aid kit
-Compass
-Fire starters (magnesium, matches)
-Space blankets
-Chlorine tablets
-Parachute cord
-Rain jacket
-Warm Hat

This "extra" stuff requires putting on a rear rack and rack-top bag, but is absolutely essential. Some of my riding is in very remote areas, with zero cell reception, few passers-by, and few doors to knock on. I carry the bare minimum necessary to spend a night in the woods without freezing to death.

JGM411

cell phone, tube, co2, levers, and sometimes a CC

woodcraft

Chain tool, roll of 1st aid tape, and micro pliers have proven themselves.

Always carry an ultra light wind jacket- about the size & weight of an inner tube when packed.

bbarnett51

Clif bars
water
frame pump
2 tubes
Bike tool
Cell phone