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Re: Ten Miles a Day

CTC Forum - On the road - 31 July 2014 - 12:29pm
I measured my 'Baseline' calorific expenditure on a chassis dynamometer in a controlled laboratory with my exhaled breath going into O2 and CO2 analysers.
Using the Carbohydrate / Oxygen formula, I could estimate the amount of CHO used during the exercise, and my Air/Fuel Ratio. ( I didn't need to shove a UEGO sensor up my jacksee ).
It came to between 45 and 50 kCals per mile along a flat road through still air ( simulated with a speed tracking fan ).
The equipment used cost more than a commercial HR monitor with kCals ‘hotch-potch’ calculation.

Re: First EVER Tour! (and I'm going RTW)

CTC Forum - Touring & Expedition - 31 July 2014 - 11:32am
Woah dude, pony news on the Iran Visa.

So you gotta go round then. To the north is the way that I've seen most people do it, Kazakhstan & China. Can you even go round to the south? Greece, Crete, Egypt, Saudi Arabia, UAE & a ferry to Pakistan, is that even doable?

All the best finding another route!

Re: Help with choosing bike type and/or commute through Lond

CTC Forum - On the road - 31 July 2014 - 11:02am
aspiringcyclist wrote:One more thing, when buying a bike can you exchange a saddle for a more comfortable one for you before buying? Or do you have to pay for the bike with the existing saddle and then buy a new saddle?

Assuming you're buying new – yes you can, and if it's done at the point of sale you might get a discount . I bought through the bike to work scheme a few years ago and, on my request, the shop very kindly swapped the saddle for a Brooks, the tyres for Marathon Plus and the quick release skewers for security skewers (requiring a specific key) for the wheels. These were all at additional cost, but they gave me a discount on the tyres.

Regarding lights – there are also USB rechargeable ones that can plug into your laptop during the day. This is the one I have, although I don't use tow tow paths/unlit roads at night. If I were, I'd be inclined to invest in a more suitable front light.

http://www.rutlandcycling.com/153500/pr ... light.aspx

Vorpal wrote:If your seat post has a quick release, replace it with a bolt that requires tools, or take the saddle with you and put it in a locker, or something. Same with any detachable lights or other equipment.

+1. I always take a quick release seat post with me if I'm in central London for the day - there's generally somewhere to store it, and I can be sure of a comfortable ride home

Re: Bridge out on Lon Las Cmyru at Portmadog - options?

CTC Forum - Touring & Expedition - 31 July 2014 - 10:04am
I agree, the lost bridge is a tragedy but I'd still stick to the coast route, perhaps timing it to avoid rush-hour.
I also agree the above comment about the hill route above Harlech. The views really are stunning enough to help you forget about the pain in your legs from all that climbing

Re: 50 mph for lorries

CTC Forum - On the road - 31 July 2014 - 9:59am
Vorpal wrote: it's only a few minutes difference in travel time.
But I am Mr Toad and must exploit the 155 mph limit of my car on all roads.

Going at 40 rather than 60 for 10 miles is a total time loss of just 5 minutes - but it *feels* like a 15 minute delay, because that's ho long the delay takes, not how long the delay is.

Traffic lights have a maximum cycle time of 120s in the UK (http://www.traffic-signal-design.com/te ... y_main.htm), although this is often reduced to 90s.
Let us assume an average of 100s and that 40% of the time they are on green.
40% of the time there is no delay on the road
60% of the time there is a delay between 60 and 0 seconds - i.e. an average of 30s.
That means the average delay from a traffic light is ~20 seconds - so passing through 3 traffic lights will delay you by ~a minute (on average)

The delay from each mile of following a vehicle at 40mph on an otherwise clear NSL road is approximately equivalent to passing *one* traffic light.

Re: Gijon to Poole Ferry

CTC Forum - Touring & Expedition - 31 July 2014 - 9:26am
So I called LD Lines, got through after being on hold for 20 minutes a very unhelpful lady who couldn't get me off the phone fast enough informined me they don't accept bicycles because of 'licensing'. I wonder if a CTC campaign might be able to change these license rules?

Re: Cyclist Knocked Over by Van Door

CTC Forum - On the road - 31 July 2014 - 8:34am
If your employer is good about allowing sick leave, that's good- but it would be nice for your employer to get compensation for their financial losses, just as you should for your injuries and losses, as it wasn't their fault either.
I didn't know myself that employers could have a claim against the person responsible for an accident, but now I do know, if I had a good employer I'd want them to be compensated as well as me, if that were possible. It's a rough time for a lot of employers at the moment, and rougher for the best ones who support their staff, as that makes their costs higher.

Re: Hello & Help!

CTC Forum - Touring & Expedition - 31 July 2014 - 8:25am
quote="Audax67"] Supermarkets too, but then there's the bike-theft problem.

I see your'e in France . Whats the bike theft problem ? In my experience fully laden tourers arent exactly an attractive proposition to thieves in the bike theft capital of the world ( UK) . Ive always done supermarkets in France and have never even seen anyone look at my bike. Obviously I always lock it but it would take some balls to even approach, let alone attempt to nick something laden down with crap in front of a supermarket.


I'm usually happy to leave my bike locked outside a supermarket. I think the exceptions may be large towns with rundown areas.
Calais has something of a reputation in this respect - someone tried to steal a pump from my bike which was on my car's roof rack - fortunately I spotted him in time.
Other people I know have had bikes stolen - but I would agree that generally you are unlikely to have a bike or equipment stolen in France.

Re: 50 mph for lorries

CTC Forum - On the road - 31 July 2014 - 8:19am
IMO, overtaking safely is one of the harder things most drivers have to do. If someone doesn't have the confidence, it's safer not to overtake. In most places, the worst that likely to happen is that they go a bit slower for a few miles. Is that really all that big of a deal? Even if a queue builds up and they go for 20 miles with no place to over take, it's only a few minutes difference in travel time.

Re: 50 mph for lorries

CTC Forum - On the road - 31 July 2014 - 8:12am
Tonyf33 wrote:A lot of people are reluctant to overtake even with plenty of time/space, they just don't have the confidence to do so and are overly cautious, some people can't overtake because they get too close to the vehicle in front and can't see anything nor would be able to stop in time if the vehicle had to stop suddenly.
I've experienced many times over the years drivers whom do 35-40mph behind an HGV on a national limit carriageway but have ample space & opportunity to overtake quite leisurely but just won't.
So actually it IS these types that often create problems through not overtaking, not only do they create a hazard all of their own doing (driving too close to the vehicle in front) but hinder others who legimately and safely can make progress when wanting to overtake much slower vehicles..

Some people are just happy to be making good progress, and 40mph *is* good progress. Bring on the driverless car, the danger in the above situation is created by the reckless overtaking, not the consistent speed of the vehicle in front.

Re: Cyclist Knocked Over by Van Door

CTC Forum - On the road - 31 July 2014 - 7:43am
It's not a quick process, though sometimes the solicitors can help with that. If you are still being treated, not much can happen, anyway, except the wheels of bureaucracy grinding away. However, the solicitor probably won't take the time to call if there are no new or significant developments. If you are worried about not receiving enough information, call them and ask.

Re: 50 mph for lorries

CTC Forum - On the road - 31 July 2014 - 7:24am
So retest all drivers every 10-15 years and those who won't make progress will fail the test.

I suspect rather more gamblers who overtake without visibility will lose their licence, though.

Re: 50 mph for lorries

CTC Forum - On the road - 30 July 2014 - 11:48pm
A lot of people are reluctant to overtake even with plenty of time/space, they just don't have the confidence to do so and are overly cautious, some people can't overtake because they get too close to the vehicle in front and can't see anything nor would be able to stop in time if the vehicle had to stop suddenly.
I've experienced many times over the years drivers whom do 35-40mph behind an HGV on a national limit carriageway but have ample space & opportunity to overtake quite leisurely but just won't.
So actually it IS these types that often create problems through not overtaking, not only do they create a hazard all of their own doing (driving too close to the vehicle in front) but hinder others who legimately and safely can make progress when wanting to overtake much slower vehicles..

Re: Cyclist Knocked Over by Van Door

CTC Forum - On the road - 30 July 2014 - 11:44pm
Thanks for those points. They are both valid. Currently I am still dealing with the claim. My arm was incredibly sore for days after and I couldn't move it for a long time without discomfort. There also seems to be some longer term issues but I am having a medical examination soon to assess the severity. Nothing life changing but it causes pain where I had none previously - which was raised by the above comment with regards to long term injuries.

My employer is very good at allowing sick leave. I cant see that being an issue - although I take your point, and its an interesting point to raise to others in a similar position.


I will update in the future with my experience of C-AMS accident management who are meant to deal specifically to cyclists. So far, OK, but not enough contact. I've been called once in three weeks with little to no discussion about what I can expect to happen in the future.

Re: coming back from germany by train

CTC Forum - Touring & Expedition - 30 July 2014 - 11:17pm
seehttp://www.bahn.com/i/view/GBR/en/home/contact/contact-in-the-uk.shtml

which gives phone number for DB in UK, they will happily sell you a bike ticket over phone.

Best to look up train you want on line.

http://www.bahn.de/i/view/GBR/en/index.shtml

chose "further search options" and tick bicycle and it will only show you trains that carry bikes.

This websitehttp://www.seat61.com/ has all the info about which trains take bikes in each country including Eurostar from Brussells or Paris.

Re: Ten Miles a Day

CTC Forum - On the road - 30 July 2014 - 11:11pm
Hi,

http://home.trainingpeaks.com/blog/arti ... ie-reading

"Calories Calculated with Heart Rate
Measuring energy expenditure based on heart rate has come a long way over the years along with technological improvements, and more are still popping up as we speak. There are several generations of algorithms that are derived from scientific metabolic testing, so trust that the companies aren’t just throwing numbers at you. Most of the HR based calculations are within 10-20% accurate. That’s not as close as within 5% with power, but not everyone wants to or can invest in that technology.

Most all HR devices use the basic user input metrics including gender, height, weight, and activity level combined with the heart data recorded. So the main thing with HR devices is to make sure you input as much accurate information as possible. In some devices actually inputting your tested VO2max over the device-estimated value can improve the accuracy from 20% to more like 12%. Some of the more advanced methods evolving now evaluate the time between heartbeats, called beat to beat, to estimate MET (Metabolic Equivalent), which finally is used to determine actual work expenditure. And some devices also have a “learn” function that with continued use tracks your changes in fitness and adjusts the energy algorithm. So sharing a device with a family member or friend once you may not notice different results, but frequently, then you probably would.

Calories Calculated with Time and Distance
Here is where the measure of energy expenditure really is tough to blame on the device. When there is no data reported from your body, the device is left to calculate energy expenditure based on the raw metrics including time, distance (if available), age, weight, and activity level (if device has this setting). That’s why this method can range from being 20-60% off. So, really you can’t depend on calorie estimates from a device with just these metrics. For example, a ride that may actually be 600 kcals total (500 kcals to summit a climb but a minimal 100 kcals to soft-pedal back down hill) would actually report as potentially a 960 kcal activity if the 60% inaccuracy is true. That’s substantial enough in a single workout to throw off the common -500 kcal/day deficit that often person aim for to lose 1 lb/week safely.

There are some general guidelines that exist for these calculations, but as you can see by the chart they don’t take into consideration your effort level to achieve the speed. This is a large factor because quickly you can conceptualize the difference of effort that is required to pedal at these rates; into a headwind or crosswind versus a tailwind, up a steep climb versus on the flats or descending, or even on a technical mountain bike trial versus a leisurely regional gravel path."

Re: Getting home (Plymouth) from Genoa or the Alps (Geneva)

CTC Forum - Touring & Expedition - 30 July 2014 - 10:34pm
GoLiteGuru wrote:Great info/ideas, thanks. loved hills ever since NZ. Became content to go slow and enjoy the surroundings. Like the dozen passes idea (with bailout options). Could drive some of them with the lads and cycle others.

Ferry home is flexible. As you say -- possibilities endless -- sometimes you need a goal or someone to visit to give a tour a bit more structure.

Isn't there a river route home? ( look on the eurovelo website) but I think there are some east west routes across France that you could up hook up to. The Loire is the obvious one but I'm sure there are some other choices, just keep going until you hit Roscoff. Sometimes though I just draw a straight line on the map and then figure out an interesting route around that.

You could head to the south west, over the Pyrenees and back from Santander if that works time and distance wise. There is some amazing scenery if you take that route, look at options through the Massif Central, Cevennes, mont Ventoux, drome, and then the choice of Pyrenean climbs and then say the national park de ordesa into Spain.

Tbh if you are doing 100m days Europe is your oyster if you have a month.

Re: Hello & Help!

CTC Forum - Touring & Expedition - 30 July 2014 - 10:21pm
ossie wrote:Audax67 wrote: Supermarkets too, but then there's the bike-theft problem.



I see your'e in France . Whats the bike theft problem ? In my experience fully laden tourers arent exactly an attractive proposition to thieves in the bike theft capital of the world ( UK) . Ive always done supermarkets in France and have never even seen anyone look at my bike. Obviously I always lock it but it would take some balls to even approach, let alone attempt to nick something laden down with crap in front of a supermarket.

I had the same thought actually. I've never had any concerns about leaving my bike outside the supermarket, locked up when travelling by myself. I admit I tend to stick to smaller towns as that where I prefer cycling so it tends to be those town centre casino shops or the small town intermarche and of course the boulangerie for brekker after I've done 40 km from an early start ( I used to be so keen which was lucky given my pain au chocolat consumption).

Only place I got something nicked was my cycle pack with some tools that I left on the bike overnight in a campsite in Northern Spain in the Picos de Europa. I assume that was pesky teens but I'm still peeved.

Re: Bridge out on Lon Las Cmyru at Portmadog - options?

CTC Forum - Touring & Expedition - 30 July 2014 - 10:00pm
I agree, go the coastal road, to get back onto it is only a bit more given the bridge is closed. The contra flow system in place is very safe for cyclists. I would also recommend the hills behind Harlech, it was one of the highlights of the trip both times I've done it.

Re: coming back from germany by train

CTC Forum - Touring & Expedition - 30 July 2014 - 9:12pm
Rail Europe are awful tricksters, happily selling you impossible tickets, far worse than their parent SNCF, so I wouldn't hold out hope of using them.

Maybe SNCF, SNCB, NS or dB will get it right soon.
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