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What kind of pump am I supposed to use on this bike?



 
 
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  #1  
Old December 3rd 18, 07:20 PM posted to rec.bicycles.tech
[email protected]
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Posts: 262
Default What kind of pump am I supposed to use on this bike?

Old Supergo Access hardtail MTB made from Columbus Cromor, with a top peg brazed behind the seat tube. Gotta be Shrader. Top and bottom mounts look like this:

https://www.dropbox.com/s/1uljlj761ucw49t/BB.jpg?dl=0

https://www.dropbox.com/s/o0vzchu04er2gr2/ST.jpg?dl=0

Thanks a lot, guys.

retroguy
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  #2  
Old December 3rd 18, 08:56 PM posted to rec.bicycles.tech
Gregory Sutter
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Posts: 164
Default What kind of pump am I supposed to use on this bike?

On 2018-12-03, wrote:
Old Supergo Access hardtail MTB made from Columbus Cromor, with a top peg brazed behind the seat tube. Gotta be Shrader. Top and bottom mounts look like this:

https://www.dropbox.com/s/1uljlj761ucw49t/BB.jpg?dl=0

https://www.dropbox.com/s/o0vzchu04er2gr2/ST.jpg?dl=0


The top mount is a standard frame pump peg. The bottom plate is a
kickstand plate rather than a pump mount. The non-drive chainstay
should have a ridge or spine upon which to mount the other end of the
pump. In your image it's hard to see if that's true, but I think so.

The pump would be a Silca or Zefal frame pump, probably Zefal for
Schrader valves.
http://www.yellowjersey.org/hpx.html
http://www.yellowjersey.org/silca.html

--
Gregory S. Sutter Mostly Harmless

http://zer0.org/~gsutter/
  #3  
Old December 4th 18, 12:07 AM posted to rec.bicycles.tech
AMuzi
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Posts: 9,844
Default What kind of pump am I supposed to use on this bike?

On 12/3/2018 12:20 PM, wrote:
Old Supergo Access hardtail MTB made from Columbus Cromor, with a top peg brazed behind the seat tube. Gotta be Shrader. Top and bottom mounts look like this:

https://www.dropbox.com/s/1uljlj761ucw49t/BB.jpg?dl=0

https://www.dropbox.com/s/o0vzchu04er2gr2/ST.jpg?dl=0

Thanks a lot, guys.

retroguy


Measure first.
From that era, a Mt Zefal or the Silca (model name?) MTB
pump probably.

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971


  #4  
Old December 4th 18, 12:29 AM posted to rec.bicycles.tech
Frank Krygowski[_4_]
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Posts: 6,415
Default What kind of pump am I supposed to use on this bike?

On 12/3/2018 1:20 PM, wrote:
Old Supergo Access hardtail MTB made from Columbus Cromor, with a top peg brazed behind the seat tube. Gotta be Shrader. Top and bottom mounts look like this:

https://www.dropbox.com/s/1uljlj761ucw49t/BB.jpg?dl=0

https://www.dropbox.com/s/o0vzchu04er2gr2/ST.jpg?dl=0

Thanks a lot, guys.

retroguy


I think it's almost certainly designed for a Zefal HP or HPX. At the end
of the pump head, those pumps have two sort of flat plastic pieces with
a concave curve cut out to fit up against a frame tube.
http://www.zefal.com/en/pumps/253-hpx-protection.html
They're about 19mm wide and 3mm thick.

One of those plastic bits is almost, but not quite, axial with the pump.
It looks to me like it would slip perfectly into that slot.

--
- Frank Krygowski
  #5  
Old December 4th 18, 12:43 AM posted to rec.bicycles.tech
AMuzi
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Posts: 9,844
Default What kind of pump am I supposed to use on this bike?

On 12/3/2018 5:29 PM, Frank Krygowski wrote:
On 12/3/2018 1:20 PM, wrote:
Old Supergo Access hardtail MTB made from Columbus Cromor,
with a top peg brazed behind the seat tube. Gotta be
Shrader. Top and bottom mounts look like this:

https://www.dropbox.com/s/1uljlj761ucw49t/BB.jpg?dl=0

https://www.dropbox.com/s/o0vzchu04er2gr2/ST.jpg?dl=0

Thanks a lot, guys.

retroguy


I think it's almost certainly designed for a Zefal HP or
HPX. At the end of the pump head, those pumps have two sort
of flat plastic pieces with a concave curve cut out to fit
up against a frame tube.
http://www.zefal.com/en/pumps/253-hpx-protection.html
They're about 19mm wide and 3mm thick.

One of those plastic bits is almost, but not quite, axial
with the pump. It looks to me like it would slip perfectly
into that slot.


The Mt Zefal version is shorter and fatter with the same HPX
head.

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971


  #6  
Old December 4th 18, 01:06 AM posted to rec.bicycles.tech
[email protected]
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Posts: 262
Default What kind of pump am I supposed to use on this bike?

Thanks a lot, boys. That Mt. Zefal "HPX Protection" piece looks like what I want. I'll see if the LBS has it.
  #7  
Old December 5th 18, 12:01 AM posted to rec.bicycles.tech
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Posts: 467
Default What kind of pump am I supposed to use on this bike?

On Monday, December 3, 2018 at 4:06:59 PM UTC-8, wrote:
Thanks a lot, boys. That Mt. Zefal "HPX Protection" piece looks like what I want. I'll see if the LBS has it.


If you can't find it locally ask Andrew.
  #8  
Old December 5th 18, 12:19 AM posted to rec.bicycles.tech
Andre Jute[_2_]
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Posts: 8,823
Default What kind of pump am I supposed to use on this bike?

On Monday, December 3, 2018 at 6:20:57 PM UTC, wrote:
Old Supergo Access hardtail MTB made from Columbus Cromor, with a top peg brazed behind the seat tube. Gotta be Shrader. Top and bottom mounts look like this:

https://www.dropbox.com/s/1uljlj761ucw49t/BB.jpg?dl=0

https://www.dropbox.com/s/o0vzchu04er2gr2/ST.jpg?dl=0

Thanks a lot, guys.

retroguy


Zefal HPX, most likely. Measure carefully because the HPX comes in 4 lengths. The non-nipple end fits over the chain stay by means of a concave bottom end to the pump.

Andre Jute
French dressing
  #9  
Old December 5th 18, 02:30 AM posted to rec.bicycles.tech
AMuzi
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Posts: 9,844
Default What kind of pump am I supposed to use on this bike?

On 12/4/2018 5:19 PM, Andre Jute wrote:
On Monday, December 3, 2018 at 6:20:57 PM UTC, wrote:
Old Supergo Access hardtail MTB made from Columbus Cromor, with a top peg brazed behind the seat tube. Gotta be Shrader. Top and bottom mounts look like this:

https://www.dropbox.com/s/1uljlj761ucw49t/BB.jpg?dl=0

https://www.dropbox.com/s/o0vzchu04er2gr2/ST.jpg?dl=0

Thanks a lot, guys.

retroguy


Zefal HPX, most likely. Measure carefully because the HPX comes in 4 lengths. The non-nipple end fits over the chain stay by means of a concave bottom end to the pump.

Andre Jute
French dressing


Correct for the eternal HPX road pumps.
If I recall (always a crapshoot nowadays) the fat Mt Zefal
HP only came in one length.

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971


  #10  
Old December 5th 18, 06:22 PM posted to rec.bicycles.tech
[email protected]
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Posts: 467
Default What kind of pump am I supposed to use on this bike?

On Wednesday, December 5, 2018 at 7:12:40 AM UTC-8, AMuzi wrote:
On 12/4/2018 5:19 PM, Andre Jute wrote:
On Monday, December 3, 2018 at 6:20:57 PM UTC, wrote:
Old Supergo Access hardtail MTB made from Columbus Cromor, with a top peg brazed behind the seat tube. Gotta be Shrader. Top and bottom mounts look like this:

https://www.dropbox.com/s/1uljlj761ucw49t/BB.jpg?dl=0

https://www.dropbox.com/s/o0vzchu04er2gr2/ST.jpg?dl=0

Thanks a lot, guys.

retroguy


Zefal HPX, most likely. Measure carefully because the HPX comes in 4 lengths. The non-nipple end fits over the chain stay by means of a concave bottom end to the pump.

Andre Jute
French dressing


Correct for the eternal HPX road pumps.
If I recall (always a crapshoot nowadays) the fat Mt Zefal
HP only came in one length.

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971


The HPX was great. Too bad they ceased production. I bought several of them off of the Internet but they mostly were worn out. The French used a lot of natural rubber which rots.
 




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