keybowvio

I just purchased my first road bike, a cannondale synapse 5 with alloy frame.

My question is about inner tubes for the tires... I know that the tires on my bike are 700x23c and have a presta valve, but what size presta valve? Also is it a good idea to buy unisize inner tubes or would it be better to buy specific sized tubes?

That's all for now, I'm sure that I'll have more later.

KeY+

Velo Dog

All presta valves are the same diameter, so your pump will fit any of them. Some tubes have longer stems, made for aerodynamic rims, which have a deeper section. In theory they're interchangeable, but the long stems look funny sticking out of a normal rim, and when i've used them once or twice in emergencies, it's been hard to pump up the tires with my frame-fit pump without ripping the stems from the tube. Unless you need the long ones, by the normal ones.
Some people insist you have to match tube size to tire size, but I haven't worried about it in years. All our family road bikes, with tires from 23mm to 41mm, are running 25mm tubes. All the mountain bikes, 1.4 to 2.3, use 26x1.5 tubes. It simplifies things, and it's never caused any problems.

keybowvio

thanks, this clears up all my apprehensions about which tubes to buy

KeY+

mrvrsick

Lol, that's what you think!!

Next tube related question is going to be "latex or butyl?"

Or "Continental vs Performance vs Michelin?"

Then "regular vs light vs SUPER light" on above choices

Then there's the never ending "smooth vs threaded stem" dilemma.

lord1e

good deal?? https://boston.craigslist.org/gbs/bik/1318972942.html

igknighted

In reality? No way. But in the current market of WAY overpriced fixed gear bikes because hipsters value them so highly, that's almost a steal. Especially in Boston, I've seen bikes like that posted for over $400 before. On the other hand, back home in Syracuse I've seen similar bikes go for around $100.

YOJiMBO20

How many times are you going to post this?

Go to the 178 and start a thread about it there, rather than in every thread in the 41.

kthxbye

keybowvio

yeah, but I've found enough info on the web for me to develop my own opinions on those things, it was really just the sizing issues that I was concerned with, everything else seems like a matter of speculation and experimentation.

KeY+

lord1e

haha i did it 3 times actualy but it was important

YOJiMBO20

Incorrect.

EKCooper

Congrats on the Synapse. Love mine.

lord1e

haha oh ya? im glad u lookin it up lol chromoly or alloy?

YOJiMBO20

1. Put down the weed.
2. Learn how to use English.
3. ???
4. Profit.

lord1e

way to just avoid the question!