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Topeak Road Morph questions

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Topeak Road Morph questions

Old 04-22-07, 06:28 PM
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MAK
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Topeak Road Morph questions

Had to use my Road Morph today for the first time and I had a few problems.

1. The pump head didn't seem to grip the presta valve very well. I use a Topeak Joe Blow floor pump and the valve fits way in and is secure. The head on the Morph seems shallow. Yes, I was using the correct size.

2. It is supposed to pump to 120 psi but at 75 psi or so it didn't have the power to pump any more. (BTW, I'm a pretty big and strong guy so it wasn't a lack of strength on my part.)

3. Once I was finished, it was very difficult to get the head off the valve. I literally had to force it off. Forcing things seem to cause breakage and I'd like to avoid ruining things on my bike.

Am I supposed to grease the hole the valve goes in on the pump head? If so, what kind is suggested?
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Old 04-22-07, 06:52 PM
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one of the best tips i ever got was to spit in the pump head when pumping presta valves. it's all the lube you need.
i have a topeak mini morph (smaller than the road morph) and i can get 120psi w/out too much work. the last two times i had to use it i gauged the psi when i got home it was 115-120. i figure i get about 1 psi per stroke with the mini morph, so i kinda count strokes and take little breaks every 25-30 pumps till i get to around 120 or so.
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Old 04-22-07, 07:11 PM
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MAK
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Originally Posted by Surferbruce
one of the best tips i ever got was to spit in the pump head when pumping presta valves. it's all the lube you need.
i have a topeak mini morph (smaller than the road morph) and i can get 120psi w/out too much work. the last two times i had to use it i gauged the psi when i got home it was 115-120. i figure i get about 1 psi per stroke with the mini morph, so i kinda count strokes and take little breaks every 25-30 pumps till i get to around 120 or so.
Superbruce, thank you for the tip.
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Old 04-22-07, 07:12 PM
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Sorry, thank you Surferbruce.
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Old 04-22-07, 07:22 PM
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Originally Posted by MAK
2. It is supposed to pump to 120 psi but at 75 psi or so it didn't have the power to pump any more. (BTW, I'm a pretty big and strong guy so it wasn't a lack of strength on my part.)
Did you use the foot pad thingy?
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Old 04-22-07, 07:23 PM
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Originally Posted by Yoshi
Did you use the foot pad thingy?
Yes I did.
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Old 04-22-07, 07:25 PM
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May be something wrong with the pump or you may not have had it on the valve in just the right position. I have no trouble at all pumping up to 120 with mine.
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Old 04-22-07, 07:34 PM
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I have the Road Morph and a Mini Morph. I have no problem whatsoever getting the pressure up to 90 PSI (my operating pressure) with either one. I usually don't use the foot peg, bracing the end on the ground is enough.

When I bought the Mini, the barrel was dried out inside, and very difficult to pump. You might want to check and make sure the internals are lubricated.

Also, on BOTH of my pumps I trimmed a tiny amount off of the rubber piece that fits inside the head... makes it much easier to get the pump head on and off the valve stem. (VERY tiny amount... Like 1/16 of an inch or 1/8 of an inch max)

I never had any problems with my original pump and head, but I lost the retaining nut off the Road Morph, and Topeak sent me a new one, along with the internals, some of which had fallen out... after I replaced them, it was very difficult to get the head on and off the valve stem. I trimmed the rubber piece very slightly so it doesn't clamp quite as tightly. (Note: I tried this because I had an extra one after I received the overhaul kit from Topeak... be VERY careful, or you'll ruin the pump)
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Old 04-22-07, 07:34 PM
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If you don't have the head properly locked on the valve (your coment about the valve not gripping properly is consistent with this) you are essentialy pressurizing the tube of the pump, which will not let you get the air you need into the tire.

Try doing it at home when you are relaxed and you'll get it right. The first time I used mine, I didn't look at the guage until it got hard to pump and by then I was at 140psi.

If you are in fact a big guy, when you set the head on the valve properly, you'll have no problem getting the pressure up.

You are correct about it being difficult to release the valve for the head, spit or some oil will take care of this. It will also get easier after you use it a few times.

Don't be discouraged, this is an amazing pump.
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Old 04-22-07, 07:53 PM
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I'm a small female without much upper body strength ... not only that, but when I had my most recent flat, I had a crash three days before which nearly dislocated my shoulder, may have torn something in my shoulder, and pulled all sorts of muscles. And I've got triceps tendonitis in the other arm. But still ... I had no trouble at all pumping my tire up to 100 psi, and I could have filled it more if I wanted.

As for getting the head off the valve, I used to have the same problem as you did, but then the guy I was riding when I had that flat with showed me a neat trick. I was pulling the head off while the valve was still near the ground, at the bottom. I was pulling the head UP (and often ramming my hands into the cassette with the force!). He turned the tire so that valve was at the top, and then pulled DOWN, and it popped right off with no trouble at all.
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Old 04-22-07, 07:53 PM
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Mine works fine on the presta valves I have on my roadie. Are you sure you changed the inside to fit presta valves?

As an aside, does anyone know what the nut connected to the guage does? I thought it was something and I tried to adjust it, thankfully I didn't do anything haha.
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Old 04-22-07, 10:02 PM
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Originally Posted by Machka
He turned the tire so that valve was at the top, and then pulled DOWN, and it popped right off with no trouble at all.
i usually turn the wheel so the valve is in the 12:00 position, and put a thumb on each side of the pump head, then press down on the pump head while pushing up against the wheel. the pump head comes off clean, every time...
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Old 04-22-07, 10:39 PM
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Originally Posted by FIVE ONE SIX
i usually turn the wheel so the valve is in the 12:00 position, and put a thumb on each side of the pump head, then press down on the pump head while pushing up against the wheel. the pump head comes off clean, every time...
That's exactly what he did!! It looked so easy!

17 years in the sport and I'm still picking up tips.
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