tubes

NJenn · 02-07-2006, 08:58 PM

Kinda a dumb question, but better to know now than when I'm desperate...

I'm running Spinergy Everydays (24") w/ 1" Primos. This is an upgrade from my Sun rims with the standard pneumatics. I was at the sports store tonight, and decided to buy a few tubes. All the 24" tubes listed a 1.75" tire as the smallest they could accomidate. So... can I still use a tube like that? Or do I need a tube that's smaller in diameter?

Thanks much!

Nicki

Jadis · 02-07-2006, 10:22 PM

I had my local bike shop order tubes for me. 1.75 is a little big. Mine are 1-1.25"

JoeyMearig · 02-07-2006, 10:27 PM

i may be wrong, but i'm pretty sure a 24" bike tire is actually a smaller diameter than 24" wheelchair tire. so aside from being too thick a diameter crossways i think that tube will be too small in the other dimension. make sense? i do know that a tube listed in a bike shop as a 26 x 1.0 is actually the same size as a 25 x 1 wheelchair tube. there are about 3 or 4 tire sizing codes and it gets confusing. your best bet is to try and use the dimension listed on the tire as 23-559 (for 25 x 1) or 23-540 (for 24 x 1) etc. that second number is the diameter (in mm) of the rim. the 26 x 1.0 listed on the bike tube is because they measure bike tires by the diameter of the wheel with a tire intalled. that was probably overkill, but i'd stick to ordering tubes from wheelchair part suppliers.

NJenn · 02-07-2006, 11:03 PM

No, Joey that makes perfect sense. On my previous rim/tire combo, 24" tubes off the rack at the bike shop fit fine. But I'm sure it's different for this set up. Thanks guys!!

Jadis · 02-07-2006, 11:22 PM

I double-checked my tubes for ya, Jenn...

my 25" rims have 25x1" tires and are using 25x1-1.25" tubes
my 24" rims have 24x2" tires and are using 24x1.75-2.25" tubes

Rbrauer · 02-08-2006, 10:10 AM

For tires n tubes, I always use the local bike shop. The price to me is typically cheaper than purchasing from a medical supply store.

Besides, then I get to gawk at all the nifty stuff they have. I have my pump that clips onto my frame. My tire patch kit is up to date. I make sure to look around for nifty bike accessories that I could possibly use.

02-07-2006, 08:58 PM	#1
NJenn Senior Member Join Date: Dec 2005 Location: Ma Posts: 239	tubes Kinda a dumb question, but better to know now than when I'm desperate... I'm running Spinergy Everydays (24") w/ 1" Primos. This is an upgrade from my Sun rims with the standard pneumatics. I was at the sports store tonight, and decided to buy a few tubes. All the 24" tubes listed a 1.75" tire as the smallest they could accomidate. So... can I still use a tube like that? Or do I need a tube that's smaller in diameter? Thanks much! Nicki

02-07-2006, 10:22 PM	#2
Jadis Senior Member Join Date: Jun 2005 Location: Salish Mtns, Montana Posts: 3,014	I had my local bike shop order tubes for me. 1.75 is a little big. Mine are 1-1.25" __________________ http://official-linerider.com/index.html

02-07-2006, 10:27 PM	#3
JoeyMearig Senior Member Join Date: Apr 2003 Location: Los Angeles Posts: 528	i may be wrong, but i'm pretty sure a 24" bike tire is actually a smaller diameter than 24" wheelchair tire. so aside from being too thick a diameter crossways i think that tube will be too small in the other dimension. make sense? i do know that a tube listed in a bike shop as a 26 x 1.0 is actually the same size as a 25 x 1 wheelchair tube. there are about 3 or 4 tire sizing codes and it gets confusing. your best bet is to try and use the dimension listed on the tire as 23-559 (for 25 x 1) or 23-540 (for 24 x 1) etc. that second number is the diameter (in mm) of the rim. the 26 x 1.0 listed on the bike tube is because they measure bike tires by the diameter of the wheel with a tire intalled. that was probably overkill, but i'd stick to ordering tubes from wheelchair part suppliers. __________________ Godspeed... freewheelchairmission.org

02-07-2006, 11:22 PM	#5
Jadis Senior Member Join Date: Jun 2005 Location: Salish Mtns, Montana Posts: 3,014	I double-checked my tubes for ya, Jenn... my 25" rims have 25x1" tires and are using 25x1-1.25" tubes my 24" rims have 24x2" tires and are using 24x1.75-2.25" tubes __________________ http://official-linerider.com/index.html

02-08-2006, 10:10 AM	#6
Rbrauer Senior Member Join Date: Jan 2006 Location: Lewisville Tx Posts: 1,311	For tires n tubes, I always use the local bike shop. The price to me is typically cheaper than purchasing from a medical supply store. Besides, then I get to gawk at all the nifty stuff they have. I have my pump that clips onto my frame. My tire patch kit is up to date. I make sure to look around for nifty bike accessories that I could possibly use. __________________ Rick Brauer or just call me - Mr B http://www.riseadventures.org

02-07-2006, 11:03 PM	#4
NJenn Senior Member Join Date: Dec 2005 Location: Ma Posts: 239	No, Joey that makes perfect sense. On my previous rim/tire combo, 24" tubes off the rack at the bike shop fit fine. But I'm sure it's different for this set up. Thanks guys!!

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