Thorn Cycles Forum
Technical => General Technical => Topic started by: stutho on April 06, 2006, 12:03:22 pm
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I am about to buy a frame pump probably a Zefal HPX. Has anyone had any problems with this pump? Is the Thuflo HPX the same pump?
According to the sjsc pump size chart (http://"http://www.sjscycles.com/hpxpumpsize.asp") I need a size 1 (I own a raven sport tour) but when I measure the gap it is a bit smaller than the 17 to 18.5 inches listed is this pump a very tight fit?
Thanks
Stutho
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quote:
Originally posted by stutho
I am about to buy a frame pump probably a Zefal HPX.Has anyone had any problems with this pump?
No problems, it's not the lightest, it is reliable. They even do a repair kit, worth carrying on a tour.
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Is the Thuflo HPX the same pump?
I don't know, it looks the same.
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According to the sjsc pump size chart (http://"http://www.sjscycles.com/hpxpumpsize.asp") I need a size 1 (I own a raven sport tour) but when I measure the gap it is a bit smaller than the 17 to 18.5 inches listed is this pump a very tight fit?
I don't know where you get those measurements from, my size 1 is about 16", the space for it on the Raven (apparently they're all the same) is about 15". It's a firm fit, not likely to fall out or rattle, but I wouldn’t describe it as very tight - it's easy to put in place. It's designed to rest on a tube, but on a Raven it's tends to sit better between the seatstays, if you do this protect the paint before it gets rubbed off.
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Ah, now I see where you got the measurements, they’re the frame sizes rather than the pump sizes, see here (http://"http://www.wallbike.com/tools/zefalhpx.html")
Looking for that I also see that there is a new version (http://"http://www.rivendellbicycles.com/webalog/pumps/28011.html")
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This is interesting. I have the newer model sport tour and was told by Thorns that it wouldn't take a frame pump
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Thanks PH
I think I have worked out where the size discrepancy is coming from. Size one is listed as fitting a 17 to 18.5 inch FRAME. (I.e. it is not 17 to 18.5 in long)
I am going to get a Thuflo HPX tomorrow (I am pretty sure it is the same pump and I can get it locally)
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Strat:
I have got the older frame - with a pump peg.
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Bought a Thuflo HPX it seams identical to the Zefal it is certainly is very solid, works very well and sits in place on the bike perfectly. Shame I didn't listen to PH though - I scraped the paint on the chain stays on my very first fitting.
Thank