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Caesar
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GPS Speedo

Anyone fitted one or got any comments?  How easy are they to calibrate?

SM25T
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If you mean a speedo working on GPS ... this is a satnav or phone app like Waze. Very accurate on level ground, not quite so good on steep hills ... remember trigonometry from school. Nothing to calibrate.
Caesar
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Like this

 

https://uk.banggood.com/85mm-GPS-Speedometer-Waterproof-200MPH-Gauge-Digital-Stainless-Car-Truck-Black-p-1365408.html?gmcCountry=GB&currency=GBP&createTmp=1&utm_source=googleshopping&utm_medium=cpc_bgcs&utm_content=garman&utm_campaign=ssc-gbg-summersale-all&utm_design=152&ad_id=358675083520&gclid=CjwKCAjwvJvpBRAtEiwAjLuRPZ9Rx7dUpaGlY9thttR-WtyuRpfWcEgHHXHXllaHqeEAdezbNtcjPBoCM0cQAvD_BwE&cur_warehouse=CN

ChrisC
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I love the questions on this product, Q "Is It GPS" A "No" Rofl

ChrisC
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Never tried a GPS speedo, all I know its they are not IVA compliant. 

Caesar
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I don't really care about IVA it's just that my K series 2006 one has died.  We have tried changing the gearbox sender to no avail and temporarily swapped in another speedo which didn't work either.  Since new senders / speedos are over £200 I thought this might be a solution.

Surely someone has used one?

Caesar
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What about this?

Nick Chan
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I think the problem is line of sight with the sky.  Like a satnav dropping its signal when you go through a tunnel or perhaps if plenty of overhanging trees, the speedo will "drop out" for a brief spell.  Most of the time it isnt a problem, but its just every now and again when you heading towards a speed camera!  

Wrightpayne
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If temp fix Sigma wired bike computer - magnet on the wheel rim and extend the sensor wire.

sforshaw
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When my speedo drive failed a couple of days before heading to Le Mans I downloaded a speedometer app for my phone and mounted the phone in the centre of the steering wheel, worked great and actually updated speed at a better rate than my Garmin nav. Absolutely basic, no frills but works perfectly:

The register for all numbered limited-edition Caterhams ....... www.thecaterhamregister.net ...... www.instagram.com/thecaterhamregister

Wrightpayne
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Arrr but would that be classed as using your phone whilst driving ;-)