Topeak Pocket Rocket

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Shoogle
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Topeak Pocket Rocket

Postby Shoogle » 25 Jul 2019, 10:51pm

Most people read reviews of things they're thinking of buying. I bought the thing, then read the reviews. Is the Topeak Pocket Rocket really that bad? I haven't used it yet, so I can still return it. It's for 57-622 tyres on my one and only, up to 45 psi max. I've also got a Zefal HPX that stays in a pannier, and a track pump at home. It was for using on the odd occasions I go out without panniers.

flat tyre
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Re: Topeak Pocket Rocket

Postby flat tyre » 25 Jul 2019, 11:15pm

Yes, pretty useless really. Road side puncture, about 5 mins to change over the inner tube then about 20 mins pumping away to get 45 psi in the tyre. Either use co2 bulbs or take a decent frame fit pump.

PH
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Re: Topeak Pocket Rocket

Postby PH » 25 Jul 2019, 11:19pm

Shoogle wrote:Most people read reviews of things they're thinking of buying. I bought the thing, then read the reviews. Is the Topeak Pocket Rocket really that bad? I haven't used it yet, so I can still return it. It's for 57-622 tyres on my one and only, up to 45 psi max. I've also got a Zefal HPX that stays in a pannier, and a track pump at home. It was for using on the odd occasions I go out without panniers.

No. it isn't that bad, it is however the wrong pump for those tyres, it's a low volume high pressure pump and you want the opposite. I have one and it's capable, with some effort, of getting 90psi in 28mm tyres, you'll be there all day for 57's.
Can't you frame fit the zefal? I've never been a huge fan, though the ones I've had have been reliable and always done the job. My pump of preference is now the Topeak Morph (Other similar pumps exist) The mini pump style makes it easy to get the volume or pressure you want (Choose the right version) and is gentle on the valve.

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NUKe
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Re: Topeak Pocket Rocket

Postby NUKe » 25 Jul 2019, 11:28pm

PH called it, wrong pump for your tyres
https://www.evanscycles.com/flynt-hv1-mtb-pump-EV304268
Something like this might suit you.
NUKe
_____________________________________

AndyK
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Re: Topeak Pocket Rocket

Postby AndyK » 25 Jul 2019, 11:32pm

I've had a Pocket Rocket on my winter road bike for years and it's reliable and effective and can get a 23mm/25mm tyre to adequate pressure, which is the most you can ask of a road-bike mini pump.

But.

It's designed for high-pressure, narrow-diameter road tyres. Its narrow barrel means you can get to high pressures without needing superhuman strength, but it doesn't deliver much air for each push. With a 57-622 tyre you should tell any companions to head off and find a coffee stop while they're waiting. Possibly even a lunch stop. It will take you a while to fill that tyre. With such a wide tyre and low target pressure, you'll be much better off with a pump intended for mountain bikes - something like the Topeak Mountain DA, perhaps. If you don't mind carrying a little more weight, their Mini DX and Morph ranges are more pleasant to use. (I have a Mini DX Master Blaster - the model with a pressure gauge - on my touring bike, and again it's worked reliably for some years.)

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Shoogle
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Re: Topeak Pocket Rocket

Postby Shoogle » 26 Jul 2019, 12:00am

NUKe, I'd prefer a push on pump as I've had recent trouble with unscrewing valve cores.

Jdsk
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Re: Topeak Pocket Rocket

Postby Jdsk » 26 Jul 2019, 8:51am

The best portable pump that I know is the Lezyne Micro Floor Drive. Mass 150g and I can quickly get over 700 kPa (100 psi). It comes in both an HP and HV version and with or without gauge. Spares are available.

https://ride.lezyne.com/products/1-mp-mfdr-v204hp

It has one design fault: with fumbly fingers it's a bit easy to release pressure by mistake when unscrewing the connector.

Jonathan

reohn2
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Re: Topeak Pocket Rocket

Postby reohn2 » 26 Jul 2019, 8:57am

Jdsk wrote:The best portable pump that I know is the Lezyne Micro Floor Drive. Mass 150g and I can quickly get over 700 kPa (100 psi). It comes in both an HP and HV version. Spares are available.

https://ride.lezyne.com/products/1-mp-mfdr-v204hp

It has one design fault: with fumbly fingers it's a bit easy to release pressure by mistake when unscrewing the connector.

Jonathan

Spot on,great pump and surprisingly light too.
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robc02
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Re: Topeak Pocket Rocket

Postby robc02 » 26 Jul 2019, 9:47am

I've had a Pocket Rocket for years and would echo the comments above - just about OK for 23-28mm tyres for occasional punctures.

I've reverted to frame fit pumps (Zefal HPX) on most of my bikes. With them I can get any tyre that I am likely to use (25 - 40mm) quickly up to the correct pressure.

PH
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Re: Topeak Pocket Rocket

Postby PH » 26 Jul 2019, 9:56am

Shoogle wrote:NUKe, I'd prefer a push on pump as I've had recent trouble with unscrewing valve cores.

You just need to tighten them when you fit a new tube, either with a special tool, pliers or you may find the jaws on your chain tool fit. Alternative, buy tubes where the core doesn't unscrew.

AndyK
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Re: Topeak Pocket Rocket

Postby AndyK » 26 Jul 2019, 10:10am

PH wrote:
Shoogle wrote:NUKe, I'd prefer a push on pump as I've had recent trouble with unscrewing valve cores.

You just need to tighten them when you fit a new tube, either with a special tool, pliers or you may find the jaws on your chain tool fit. Alternative, buy tubes where the core doesn't unscrew.

Hmm. This does feel a bit like "it's not the pump that's wrong, it's ALL these damn innertubes that are wrong!" :-) A much easier solution if you haven't already spent the money is "buy a different pump in the first place".

PH
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Re: Topeak Pocket Rocket

Postby PH » 26 Jul 2019, 10:22am

AndyK wrote:
PH wrote:
Shoogle wrote:NUKe, I'd prefer a push on pump as I've had recent trouble with unscrewing valve cores.

You just need to tighten them when you fit a new tube, either with a special tool, pliers or you may find the jaws on your chain tool fit. Alternative, buy tubes where the core doesn't unscrew.

Hmm. This does feel a bit like "it's not the pump that's wrong, it's ALL these damn innertubes that are wrong!" :-) A much easier solution if you haven't already spent the money is "buy a different pump in the first place".

Takes ten seconds to tighten the core, once, too much trouble for you? It isn't something that would dictate my choice of pump. You can't have your cake and eat it - screw on connections are the most secure, the price is they take a little longer to connect and you have to have tightened the cores.

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Shoogle
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Re: Topeak Pocket Rocket

Postby Shoogle » 26 Jul 2019, 12:02pm

I have tightened my valve cores but you never know.

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Audax67
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Re: Topeak Pocket Rocket

Postby Audax67 » 27 Jul 2019, 10:03am

Can we posit a rule that the more dashing the name the more rubbish the pump?

Pocket Rocket ==> small, powerful, dynamic. But in reality a load of [that stuff].

Road Morph ==> Morpheus, Roman god of sleep & dreams. Snore. But: the most efficient road pump I ever had, and the only one I can use with my cobbled-together clavicle.
Have we got time for another cuppa?

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RickH
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Re: Topeak Pocket Rocket

Postby RickH » 27 Jul 2019, 3:23pm

AndyK wrote:
PH wrote:
Shoogle wrote:NUKe, I'd prefer a push on pump as I've had recent trouble with unscrewing valve cores.

You just need to tighten them when you fit a new tube, either with a special tool, pliers or you may find the jaws on your chain tool fit. Alternative, buy tubes where the core doesn't unscrew.

Hmm. This does feel a bit like "it's not the pump that's wrong, it's ALL these damn innertubes that are wrong!" :-) A much easier solution if you haven't already spent the money is "buy a different pump in the first place".

But if the cores in the tubes aren't fully tightened then you are going to be needing to pump the tyres more often because they are seeping a little air out of the valve.

And they will do that whatever type of pump you use.