Schrader to Presta?

Seems to me it would be easier to seat 1" tires if I put in Presta tubes, but my wheels are drilled
out to Schrader. Is there some kind of bushing I can use? What to I have to do to a Zefal frame pump
or Blackburn floor pump to use with Presta that's reversible so I can pump up my other bikes? THanks
--
Lincoln Ross NOTE ADDRESS CHANGE: lincolnr@rcn.com

"Lincoln Ross" <lincolnr@rcn.com> wrote in message news:3E2750E9.71A2006A@rcn.com...
> Seems to me it would be easier to seat 1" tires if I put in Presta tubes, but my wheels are
> drilled out to Schrader. Is there some kind of bushing I can use? What to I have to do to a Zefal
> frame pump or Blackburn floor pump to use with Presta that's reversible so I can pump up my other
> bikes? THanks
> --
> Lincoln Ross NOTE ADDRESS CHANGE: lincolnr@rcn.com

You can get them at Radio Shack. They are the little rubber grommets used to protect power cords
coming through a hole in a metal case. If your other bikes are Schrader you can get a brass adapter
at your LBS to screw over the presta valve and use a pump set up for schrader. This way you won't
have to swap the guts to your pumps everytime.

Mike

Yes, there used to be rubber donuts available to allow you to run presta valves. As far as being
able to have a pump for either valve type, there are two ways that I can think of. You could use one
of those little screw on adapters to "change" a presta into a schrader. Or, once upon a time I seem
to recall seeing a dual head pump - maybe you could chase one down.

In article <3E2750E9.71A2006A@rcn.com>, lincolnr@rcn.com says...
>Seems to me it would be easier to seat 1" tires if I put in Presta tubes, but my wheels are
>drilled out to Schrader. Is there some kind of bushing I can use? What to I have to do to a Zefal
>frame pump or Blackburn floor pump to use with Presta that's reversible so I can pump up my other
>bikes? THanks

Yes, you can get grommets at your LBS, but you don't need them. I've been running a preta tube in a
schraeder rim for a couple of years at high pressure, 100psi, with no ill effects.
--------------
Alex

> If your other bikes are Schrader you can get a brass adapter at your LBS to screw over the presta
> valve and use a pump set up for schrader. This way you won't have to swap the guts to your pumps
> everytime.

Make sure you get one with an O-ring. The adaptors without work poorly,
ime.

I carry one in case I loose/forget my pump so I can use a garage/gas station airline on my presta
valves in an emergency.

~PB

"Alex Rodriguez" <adr5@columbia.edu> wrote in message
> Yes, you can get grommets at your LBS, but you don't need them. I've been running a preta tube in
> a schraeder rim for a couple of years at high pressure, 100psi, with no ill effects.

Ditto.

My Proflex came with Mavic rims drilled for Schraeder, but with Presta tubes. I've been running them
without grommets for 7 years now at even lower pressures (40 psi) which puts even more stress on the
valve, with no problems.

Steve B.

Thanks all. Guess I don't need to worry. Mechanic at one of many LBS (well, ok, I can't walk to this
one) told me that if I reverse the rubber parts in my Zefal HP it will work directly. (BTW, don't be
jealous, along with the many bike shops we have too many aggressive drivers. Probably would even
give up walking distance to Sheldon Brown's shop in order to install eyes and consideration in all
local drivers (most of them are ok, as everywhere, but it doesn't take very many)).

Lincoln Ross wrote:
>
> Seems to me it would be easier to seat 1" tires if I put in Presta tubes, but my wheels are
> drilled out to Schrader. Is there some kind of bushing I can use? What to I have to do to a Zefal
> frame pump or Blackburn floor pump to use with Presta that's reversible so I can pump up my other
> bikes? THanks
> --
> Lincoln Ross NOTE ADDRESS CHANGE: lincolnr@rcn.com

--
Lincoln Ross NOTE ADDRESS CHANGE: lincolnr@rcn.com