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Old 12-01-21, 09:43 AM
Iride01's Avatar
Join Date: Jul 2017
Location: Mississippi
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Bikes: '20 Tarmac Disc Comp '78 Raleigh Competition GS

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Are you pushing the pump handle to the bottom of it's stroke or just stopping when the compressed air in the pumps piston starts fighting back? I don't know about your pump, but pumps that push more volume of air per stroke will get quite difficult to push the handle down that last 1/4" they need to go.

If you suspect the gauge in error, then go get a hand held gauge that will fit your valve stem and check if it shows a big difference from what the pump gauge shows.
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