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cycle computer - miles or kilometres?

Hi all,

I guess this question is mainly aimed at the UK cyclists on here.

If you use a cycle computer / odometer, do you have it set up to read miles and MPH, or kilometres and KPH?

I'm just calibrating my new one, and trying to choose. Always used miles on my old one, but am tempted to go metric. How many of us have done so?

Could it be a poll question, maybe?

If you're new please join in and if you have questions pop them below and the forum regulars will answer as best we can.

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26 comments

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Blackhound | 13 years ago
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It's the West of Ireland that is confusing, still a number of old finger posts in imperial with the newer ones in metric.

But wonderful cycling country though......

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Daclu Trelub | 13 years ago
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I'm in Ireland, which has been properly metric for a few years now. Despite this, I still measure distance in miles as I don't have any truck with any of that new-fangled Continental nonsense. The French can keep it.

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Fringe | 13 years ago
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the real challenge for me on the metric century side of things is trying to fit one in once a month what with all the other things to do (work/family/domestic life etc etc).

mind you after the Ex Ex i am considering doing several MC's at night.. now that would be fun  4

km btw, to return to the original thread of this post, why.. because im a european!

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dave atkinson | 13 years ago
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depends where the 62 miles go, as well. 62 miles of cornish coastline is going to do you a lot more damage than a 100-mile lap of the fens  1

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David French | 13 years ago
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62 miles isn't really worthy of being called a CHALLENGE though. A goal maybe, but not a challenge.

He says knowing that 6 months ago he couldn't have ridden 100 miles in a day.

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DaSy replied to David French | 13 years ago
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David French wrote:

62 miles isn't really worthy of being called a CHALLENGE though. A goal maybe, but not a challenge.

He says knowing that 6 months ago he couldn't have ridden 100 miles in a day.

I think the challenge part comes in with how often you do it.

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Simon E replied to David French | 13 years ago
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David French wrote:

62 miles isn't really worthy of being called a CHALLENGE though.

Some people would disagree. And there's no need to dismiss other people's targets and achievements, whether big or small.

It also depends whether you want a CHALLENGE, as you call it, or enjoy a ride the way I consider it. I did a 40 mile hilly ride the other Sunday morning. I found it quite hard but still enjoyable and I felt a sense of achievement when I got home. I have no desire to grind myself down for 100 miles unless there is a purpose as I don't find clocking up 3-digit mileages an end in itself.

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Blackhound | 13 years ago
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To add to rule 24 and my previous post the 4 nations that are still on imperial measurements, iirc, are USA, Albania, North Korea and Brunei. The rest of the world is in km. (I also sorted out my Garmin so now in km!)

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simondbarnes | 13 years ago
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Blackhound | 13 years ago
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Continental pro race's are in km so you should be measuring the same  1 And GB converted to metric in 1880 sh (can't be bothered to check exact date) as part of some international agreement. Only 4 countries not switched as it happens.

Having said that my garmin vista is in miles and I set off doing a 300k audax with km measurements on the route sheet. Now I am ok at sums and been converting ok for years but after about 200km trying to convert from km on the sheet to miles to add to elapsed mileage was getting difficult...

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Ms Morthern Rebel | 13 years ago
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I have miles on mine and my other half has KM on his - best of both worlds.

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PJ McNally | 13 years ago
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Yep - metric and mental calculation it is, then.

The final straw was realizing (thanks to Sheldon Brown's site) that most cycle computers, mine included, "think" natively in cm or mm.

His point is that not all computers use an accurate conversion factor. They should divide the km by 1.609344 to get miles. But some lazy programmers just used 1.6 instead. So I'm going with km.

http://www.sheldonbrown.com/cyclecomputer-calibration.html

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simonmb | 13 years ago
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Personal choice I guess, and shouldn't be too difficult a decision to make since whatever you're on it's easy to do a mental calculation to see what it is in the other  26 Having said that, miles would appear to be the logical choice for UK. I must say I tend to look slightly askance at those who have a kilometre set up and congratulate themselves on completing a 'Metric Century' as if it were as worthy an achievement as an 'imperial' century. While a 62 mile ride is ALWAYS worthy of congratulation, its conversion to a 'century' is another symbol of the 'dumbing down' and rampant acceptance of mediocrity in our society. Although this instance is perhaps ultimately harmless, it is particularly sad to see when it creeps in to our wonderful sport.

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STATO replied to simonmb | 13 years ago
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simonmb wrote:

I must say I tend to look slightly askance at those who have a kilometre set up and congratulate themselves on completing a 'Metric Century' as if it were as worthy an achievement as an 'imperial' century. While a 62 mile ride is ALWAYS worthy of congratulation, its conversion to a 'century' is another symbol of the 'dumbing down' and rampant acceptance of mediocrity in our society. Although this instance is perhaps ultimately harmless, it is particularly sad to see when it creeps in to our wonderful sport.

Oops, might not want to go here then...
http://road.cc/content/forum/10600-metric-century-challenge-2009-2010

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cat1commuter replied to simonmb | 13 years ago
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simonmb wrote:

While a 62 mile ride is ALWAYS worthy of congratulation, its conversion to a 'century' is another symbol of the 'dumbing down' and rampant acceptance of mediocrity in our society.

The needle on my irony meter is going crazy.

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timlennon replied to simonmb | 13 years ago
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simonmb wrote:

... While a 62 mile ride is ALWAYS worthy of congratulation, its conversion to a 'century' is another symbol of the 'dumbing down' and rampant acceptance of mediocrity in our society. Although this instance is perhaps ultimately harmless, it is particularly sad to see when it creeps in to our wonderful sport.

I'm completely intrigued as to how you make the mental leap from achieving a 62 mile ride to general dumbing down. Is this a less-than sly reference to the "exams were harder in my day and everyone does media studies nowadays" lobby?

In terms of general acceptance of mediocrity, you may want to place X Factor / Pop Idol / whatever in that group, but I wouldn't call (for example) British Cycling's best ever results mediocre, or the fact that a British rider won five TdF stages ...

Do you have a specific example in mind of how cycling is becoming more mediocre?

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simonmb replied to timlennon | 13 years ago
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timlennon][quote=simonmb wrote:

Do you have a specific example in mind of how cycling is becoming more mediocre?

I don't feel cycling is becoming mediocre at all - quite the opposite in fact! But I do feel some 'century-collectors' have adopted the metric standard because it's an easier target to aim for. My point was simply that an imperial century is the traditional, and more challenging, century.

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Simon E replied to simonmb | 13 years ago
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simonmb wrote:

an imperial century is the traditional, and more challenging, century.

If you mean it's further then you're right. All else being equal, it is surely harder. But does it matter?

I've never been into ticking off lists/Munro bagging and so on. A good ride is what matters to me and with a young family the possible goal of clocking up 62.1371192 miles is a more realistic target on a weekend. That's 4 hours out of a non-work day while my family waits at home instead of 6 or 7.

This 'lesser' century wouldn't really be a Century anyway as my bike weighs less than half a ton and has those modern fangled gear thingies on, which is cheating. Harrumph! Henri Desgranges would never approve.

If my ride was only 97 miles long instead of 100 would it matter to anyone? Not that I care, I ride for my benefit and not anyone else's. Which is probably terribly selfish, but I care not a bit for some mythical 'spirit' of cycling from an era when miles mattered most and men were men. I'm half way to qualifying as a Mamil too, so feel free to pour the scorn.

It's Friday evening, I'm tired, and I haven't even had a drink yet. Does it show?  3

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DaSy replied to simonmb | 13 years ago
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simonmb wrote:

But I do feel some 'century-collectors' have adopted the metric standard because it's an easier target to aim for. My point was simply that an imperial century is the traditional, and more challenging, century.

It is an easier target to aim for, and much more reasonable training distance, you can ride 62 miles at tempo, and get a good workout, whereas a 100 mile ride tends to be an endurance ride, and so not something I need to knock out with such regularity. I ride at least one 100 miler a month usually, but fail to see the kudos you seem to attach to it.

Maybe we should put down our times for these distances too, for full elitist effect?

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Simon E | 13 years ago
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I went metric initially because I could calibrate my computer more accurately with mm than inches. Decided to leave it that way, partly because I know 0.1km is 100m whereas I didn't want to figure out tenths of miles in feet or yards (maybe that's my less than stellar ability at maths). I prefer it, though I find I still mentally convert to mph when checking my speed out on the road. Rough guide:

kmh / mph
16 = 10
25 = 15
32 = 20
40 = 25
50 = 30

Anything more than 50km/h is too fast to be staring at the computer!

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PJ McNally | 13 years ago
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" luckily the Garmin 705 lets you have a combination of both imperial and metric for different measurements."

Maybe this is the best of both worlds. Bizarrely, my cycle computer only lets you choose miles or km, mph or kph, when you first turn it on. (free Kellogg's one, so i can't complain).

Reassuring, that UK cyclists are using km.

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Super Domestique | 13 years ago
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I would have opted for miles but the shop set the computer to kph. I didn't want to re-set it as I wanted to use the odometer as a guide for when to return the bike for its first service and now have got used to kph so will stick with it.

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DaSy | 13 years ago
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I use miles an hour for speed when in the UK, but change to kilometres an hour when abroad.

I always use metres for height gain though, luckily the Garmin 705 lets you have a combination of both imperial and metric for different measurements.

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cat1commuter | 13 years ago
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I am metric. 30 kph seems so much better than 18 mph. And it is much easier to see how pathetically slow I am compared to the pros. I mean, when I'm really going for it, I sometimes reach the average speed for the entire Tour de France!

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adscrim | 13 years ago
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I'm in a similar boat, always been miles but considering metric - just wondering how long after a change it will take for me not to convert to mph mentally!

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timlennon | 13 years ago
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Metric and KM, myself. Also makes my (13km) comute sound a bit more impressive!

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