This topic has 29 replies, 23 voices, and was last updated 8 years ago by .

Edition 3 - TWLC Low Clearance Hydraulic Torque Wrench Operation Manual LDF 10063 SPX Bolting Systems Page 6 of 17 3. Power Requirements The TWLC torque wrench requires a hydraulic pump unit, twin-line connecting hose and couplings in order to operate.

Looking for a decent shock pump to replace the ‘Wrench Force’ one i have at the minute which for a piece of accurate measuring equipment requires a lot of guess work, main problem is leakage when fitting/removing the pump so would ideally like one with a fancy little flicky switch that solves the problem, as both the shocks a have on bikes have a small high pressure chamber and even the slightest pssst can be 50-60psi. All suggestions greatly appreciated!
Posted 8 years ago
Topeak one is good – got that and a Fox one and it’s definitely the more consistent. https://belirp.weebly.com/blog/latex-download-for-mac. Has a 2 stage valve so in theory no pressure should be lost when removing it.
Posted 8 years ago
Topeak one here as well, has the two stage part that unscrews before removing it from the shock. Seems to work every time.
Posted 8 years ago
Topeak here too – I’m really impressed.
Rachel
Posted 8 years ago
got a very thing long Fox one, it is very good. Do not buy a Specialized one.
Posted 8 years ago
I use a very old Fox one but I also use it with a Topeak Pressure-rite check valve which means I get more consistent results.
Posted 8 years ago
Magura one said to be very good. Topeak one excellent & much cheaper.
Andy
Posted 8 years ago
Another vote for the Topeak. Had mine for years and it’s never leaked air, great little pump.
Posted 8 years ago
main problem is leakage when fitting/removing the pump so would ideally like one with a fancy little flicky switch that solves the problem, as both the shocks a have on bikes have a small high pressure chamber and even the slightest pssst can be 50-60psi.
Surely this is just the air in the shock pump escaping when the pump is removed. When the pump is re-attached the air in the fork/shock will escape into the pump to equalise so it will look like there is a large drop in the pressure given the small chamber size. If air escaped the fork/shock, that would be a problem with the valve. I’ve got a Wrenchforce pump and it’s always worked fine.
Posted 8 years ago
I’ve got a Halfords Bikehut one which was about Â£12-Â£15 IIRC and is identical to many ‘premium branded’ ones and is tough and relaible.
Posted 8 years ago
I’ve got a Halfords Bikehut one which was about Â£12-Â£15 IIRC and is identical to many ‘premium branded’ ones and is tough and relaible.
Yep, this is a good pump. The RockShox one I have feels better quality but the halfords one has been perfect in use.
Posted 8 years ago
+1 for not buying a Specialized one. They suck!!
Posted 8 years ago
+1 for Magura. I have a Specialized one too and while it works ok, it give wildly varying pressure readings. It has the advantage of doing both tyres and shock though so handy on the trail.
Posted 8 years ago
Why doesnt someone make a tiny gauge that you leave attached to the valve.
Look out for me on Dragons Den. ðŸ˜‰
Posted 8 years ago
I’ve got a Buzzy’s Pollinator >10 years old and still going strong.
Posted 8 years ago
BETO’s pump is spot on- durable and easy to use.
But I’m wondering if it’s just what Nuke says- any decent shockpump should have no leakage as it should close the valve before the seal breaks, but you’ll always hear the air leaking from the pump (and, if you reattach it afterwards you’ll find lower air pressure in the shock because some of the air from the shock repressurises the pump)
Posted 8 years ago
takisawa2 – Member
Why doesnt someone make a tiny gauge that you leave attached to the valve.
Look out for me on Dragons Den.
It would need a very wide scale on it which would make accurate readings harder
“I’m out”
Posted 8 years ago
no it didn’t! Wd smartware download mac os x. pressure simply released as you re-attached the pump (it’s meant to) the actual shock valve is closed when you’re unscrewing the pump’s attachment so you don’t lose any pressure until you re-attach.
wrench force shock pumps are fine!
but what are you on about when you say “it leaks around 10psi”?
if the shock valve is leaking, tighten it or get it replaced.
Posted 8 years ago
There’s some right divs on here!
Nuke’s got it spot on.
Posted 8 years ago
As above posts, pressure drop due to presuization/increase in volume with the pump hose to the gauge on pump.
Fox pumps are pretty good (what I use in the workshop), altthough I haven’t tried a wrench force
Posted 8 years ago
Mail app mac taking up space. This is the Topeak one I use – can’t fault it.
Reviews here –
http://www.mtbr.com/cat/accessories/pump/topeak/pocket-shock-dxg/PRD_416099_136crx.aspx
Posted 8 years ago
Loco – Have a look at a wrench force shock pump, it’s the same pump as your Fox shock pumps (just slightly different colour and graphics and the wrench force is sold at a slightly cheaper RRP)
Posted 8 years ago
I thought the “div” comment was pretty spot on.
Posted 8 years ago
I know what you mean loneomen… I have an old Marzocchi branded pump where it’s possible to completely deflate the shock while you are undoing the connector as there is a point where the pressure seal is lost while still having the valve pin slightly depressed. It was always a race to undo the pump as quickly as possible and so get as little pressure loss as possible
I ended up fixing that by stuffing extra o-rings down inside the pump head so it would seal until the valve was fully closed, but it still didn’t work very well.
Thankfully I was bought a new shock pump which has a two stage head on it… you screw onto the valve first and then screw another part in to depress the pin.
No idea what make it is though…
Posted 8 years ago
It must be amazing to know everything like GW and twohats – you obviously both know more than a number of shock pump designers and manufacturers.
There are only 2 divs on this thread.
Posted 8 years ago
why cannt people just help people on the bike bits and argue in the chat bit?
i had one pump that did as the OP described and one that did not . Can I be half a div and half awesome please ðŸ™„
Posted 8 years ago
I got the Magura one as I was sick of having to guesstimate 10-15psi more to compensate for what was lost when unscrewing the valve and it’s great.
The SKS pumps are good too but Â£Â£Â£Â£Â£Â£Â£
Posted 8 years ago
It must be amazing to know everything like GW and twohats – you obviously both know more than a number of shock pump designers and manufacturers.
If the pump’s operating as described, that seems entirely possible.
Posted 8 years ago

Wrench Force Presta Valve Bike Bicycle Manual Air Pump w/ Gauge to 160 PSI. You are bidding on a pre-owned Wrench Force Presta Valve Bike. BiKe mAnuAL Torque wrench with Allen key adapter size 5 and 6. Allen key size 5 and 6. Torque wrench with socket key 17 mm. Shock pump (models with air suspension).
NEW in box Wrench Force brand fork shock. Works with any fork or shock.

Wrench Force Pump Parts

Wrench Force Pump Manual

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Wrench Force Shock Pump Manual