Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Mountain Biking Mountain biking is one of the fastest growing sports in the world. Check out this forum to discuss the latest tips, tricks, gear and equipment in the world of mountain biking.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 01-11-09, 07:41 PM   #1
Lebowski
bikes are sexy
Thread Starter
 
Lebowski's Avatar
 
Join Date: Apr 2008
Location: Sheboygan area, WI
Bikes: [2008 specialized allez tripple], [2006 Specialized hardrock sport], [1998 Robinson Rebel], [1980's vintage schwinn ministing], [2008 specialized epic comp] - [2009 origin8 scout 29er], [2005 KHS DJ200]
Posts: 599
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
carrying a shock pump for use on tires

http://crankbrothers.com/powerpump_pro.php#
i have this pump that i use occasionally. although the gauge goes to 120 psi i never had the patience to pump a tire past 20 psi. i like to keep it in my seat pack on my road bike

i like to keep a dedicated set of tools in my seat pack for road cycling and a separate set in my camelbak for trail riding. i got sick of swapping stuff around a couple times a day.. i just wanna hop on the saddle and ride

so anyway i was thinking of killing 2 birds with one stone, i need to own a shock pump, and i need another small pump for flats. i don't think many people carry a fork pump on rides but.. the added versatility to adjust fork pressure on the fly would be nice.

http://www.jensonusa.com/store/produ...x+Hp+Pump.aspx

would that be suitable to pump up a fixed flat on the trail? i know it pushes a small volume of air per stroke but it cant be worse than the dinky crank brothers pump.
Lebowski is offline   Reply With Quote
Old 01-11-09, 07:49 PM   #2
santiago
sarcasm meter: jerk mode
 
santiago's Avatar
 
Join Date: Mar 2005
Location: Montréal, QC, Canada
Bikes: 2005 Kona Blast; 2005 Turner Flux, 2006 Felt F3C
Posts: 4,510
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You'd be waiting a really long time to get your tire pumped up. Get a CO2 kit and throw it along with a few extra cartridges into your Camelbak.

Carrying a shock pump, IMO, is done seldom. I brought one with me for a little while to get things dialed in, but I'll leave it in the car at most. You should have a shock pump, but you'll get tired of carrying it around.
__________________
First Class Jerk
santiago is offline   Reply With Quote
Old 01-11-09, 08:40 PM   #3
jcook1989
Senior Member
 
Join Date: Aug 2008
Location: San Luis Obispo/San Diego
Bikes: Norco Rampage
Posts: 223
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Shock pumps are made for high pressure low volume applications. The pump will work put it will take a long time to air up a tire.
jcook1989 is offline   Reply With Quote
Old 01-11-09, 08:45 PM   #4
Lebowski
bikes are sexy
Thread Starter
 
Lebowski's Avatar
 
Join Date: Apr 2008
Location: Sheboygan area, WI
Bikes: [2008 specialized allez tripple], [2006 Specialized hardrock sport], [1998 Robinson Rebel], [1980's vintage schwinn ministing], [2008 specialized epic comp] - [2009 origin8 scout 29er], [2005 KHS DJ200]
Posts: 599
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
well did you look at that first pump? i cant imagine there's a lower volume pump than that
Lebowski is offline   Reply With Quote
Old 01-11-09, 08:55 PM   #5
ed 
.
 
ed's Avatar
 
Join Date: Oct 2005
Location: The Summit of Lee
Bikes: Hecklah
Posts: 10,932
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The first one has a chamber that extends as you pull the handle out (I think) and the chamber diameter is just under an inch.(I think..again)

A shock pump chamber is like 1/4" (I think...again...more) so it pumps low volume stuff up in tiny incriments. Pumping up a road tire to 20psi would take a million years. Pumping up a MTB tire to 35psi would take a billion years...(I think)
ed is offline   Reply With Quote
Old 01-11-09, 09:01 PM   #6
jcook1989
Senior Member
 
Join Date: Aug 2008
Location: San Luis Obispo/San Diego
Bikes: Norco Rampage
Posts: 223
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
As low volume as that pump might be shock pumps are even lower.
jcook1989 is offline   Reply With Quote
Old 01-11-09, 09:52 PM   #7
Lebowski
bikes are sexy
Thread Starter
 
Lebowski's Avatar
 
Join Date: Apr 2008
Location: Sheboygan area, WI
Bikes: [2008 specialized allez tripple], [2006 Specialized hardrock sport], [1998 Robinson Rebel], [1980's vintage schwinn ministing], [2008 specialized epic comp] - [2009 origin8 scout 29er], [2005 KHS DJ200]
Posts: 599
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
well i was afraid of that. thanks for the replies. it would have been awesome
Lebowski is offline   Reply With Quote
Old 01-11-09, 10:01 PM   #8
ed 
.
 
ed's Avatar
 
Join Date: Oct 2005
Location: The Summit of Lee
Bikes: Hecklah
Posts: 10,932
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Here dood...just get this'n:

http://www.universalcycles.com/shopp...9&category=133
ed is offline   Reply With Quote
Old 01-11-09, 10:17 PM   #9
ProFail
Generic Title
 
ProFail's Avatar
 
Join Date: Dec 2007
Location: North Carolina
Bikes: 2008 Trek Fuel EX7, 2007 Trek 1600, 2007 Eastern Warthog
Posts: 1,927
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Nvm lulz
__________________
Generic Joke
ProFail is offline   Reply With Quote
Old 01-12-09, 12:41 AM   #10
jjbod1
Senior Member
 
jjbod1's Avatar
 
Join Date: May 2008
Location: Dacula,Ga
Bikes:
Posts: 402
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I have used a shock pump to fill my tires in a worst case. They are right it takes years!!!! If you are to carry a pump, carry one ment for tires.
jjbod1 is offline   Reply With Quote
Old 01-12-09, 01:35 AM   #11
scrublover
Te mortuo heres tibi sim?
 
scrublover's Avatar
 
Join Date: Aug 2004
Location: East coast
Bikes: hardtail, squishy, fixed roadie, fixed crosser
Posts: 3,486
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I've got one of those Crank Bros. pumps. Sucky, to be charitable to the thing. I went back to using an old Blackburn pump - works much better. Since all my bikes are air sprung forked and rear shocked, I carry a small basic shock pump as well. I'd rather have it along and not need it than the reverse.

Using a shock pump to inflate a tire, as others have said, would take forever.

Also tried a combo tire/shock pump made by Specialized. It sucks. It works, but is fiddly and takes longer to fill either than a dedicated tire or shock pump. Wonder if that Serfas one is any better. IMO, Blackburn makes the best offroad pumps. Would love to see them come up with a nice high volume/high pressure capable combo pump.
scrublover is offline   Reply With Quote
Old 01-12-09, 04:20 AM   #12
Metzinger
Primate
 
Metzinger's Avatar
 
Join Date: Jan 2006
Location: gone
Bikes: Concorde Columbus SL, Rocky Mountain Edge, Sparta stadfiets
Posts: 2,582
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Using that pump for MTB is analogous to using a shot glass to fill a swimming pool.
Any light cheapo wide barrel telescoping pump would be better than that thing. And don't go CO2, unless it's for race use. To finicky, too high risk, too wasteful.
Metzinger is offline   Reply With Quote
Old 01-12-09, 07:45 AM   #13
cobba
B A N N E D
 
Join Date: Aug 2006
Bikes:
Posts: 1,397
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Giyo GS-41: http://www.giyo.com.tw/web/03product/03shock/GS-41.htm

*this pump and a few other Giyo models are often rebadged by other companies and sold as their own.

Last edited by cobba; 01-12-09 at 07:48 AM.
cobba is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 12:21 AM.