Forum Replies Created
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It’s a good question, but the
It’s a good question, but the problem is that bikes are so accessible – for example, would children need to have computers fitted to their bikes, and be taught about speed limits?What about cheapo utility bikes, or post office bikes?
What is an acceptable level of calibration or margin for error?
What if I fit a computer to my bike, attach the wheel sensor, but calibrate for the wrong wheel size, thus understating my speed? Am I liable for prosecution?
Would this lead to a mandatory requirement for only bike shops to fit computers?
The law could be something like “no overtaking of cars”, but where’s the distinction between overtaking a car at 25mph in a 20 zone, and passing a car that is slowing to turn etc? This not only wouldn’t work, but the grief you’d get for passing a car legitimately would go through the roof.
The idea that all vehicles should limited to x mph in zone y is fine, but the implementation would be a mess.
Ultimately, the government are simply relying on the limits of a rider’s fitness. Some people (drivers, mainly) might say that the dreaded ‘lycra warriors’ ride too quickly and should observe speed limits, use computers to monitor speed etc, but trying to categorise cyclists into different groups would never work.
Besides, those of us with the fitness to go faster usually know how painful it will be to get it wrong.
thebungle wrote:It should be
It should be common sense, regardless of the what the law says, if the law said it was ok to cycle in outside lane of the m25 I still wouldn’t do it because I know at some point it would end in tears.I’ve come around a bend in a car before to find runners two abreast running towards me, I was perhaps doing 40mph (with plenty of time to stop, the verge was too rough for them to continue running, my only option was to either come to a halt or to move completely over to the other side of the road, neither of which IMO I should’ve been put in a position in to do so.
What if it was two bikes, travelling in the same direction as you?
I have a lezyne snack pouch
I have a lezyne snack pouch that sits on the top tube behind the stem. Imagine it rather defeats the point re aero though.The alternative is to wear a gilet – food in jersey pockets but without pockets gaping in the airflow down your back.
@Thebungle – that stem is
@Thebungle – that stem is definitely a love/hate thing, personally I love it.Spin bikes are nice, but I don’t think I’d be choosing those wheels!
I’m supposed to be going up
I’m supposed to be going up there on Sunday. We’ve got a support vehicle as well, so the roads need to be officially open. I’ll keep an eye on this.Thanks for posting.
chiv30 wrote:Surely that is
Surely that is the most obvious statement ever :/
You will always see a considerable improvement by a 3.5 kilo difference but the point here is if you can shave 1kg with little financial outlay do it , three things hurt a cyclist …..weight, gravity and wind resistance weight is the easiest to alterPerhaps so, but my point was that everyone raves about how a good set of wheels will transform your ride, you’ll fly up hills etc – after shedding a similar amount of bike weight as the OP, I thought the difference was much less pronounced than that.
Christ. It’s getting to the
Christ. It’s getting to the point that I’m wondering whether to have a copy of the highway code on me.Dave Atkinson wrote:the
the iphone 4 uses a Broadcom BCM4750IUB8 single-chip GPS receiver. so yes, it does have proper GPSnot all chipsets (and not all chips of the same type) are equally capable. I’ve had two HTC One X handsets and the GPS tracking on the first was noticeably better than on the second
I checked – you’re quite correct, although it appears to be supplemented by cellphone signal triangulation and wi-fi networks. I assume the GPS chip alone isn’t as good as others, otherwise why bother with the other stuff etc.
Don’t want much, do you?
Don’t want much, do you? 😀Mind us asking what your budget is?
How about a Condor? Look? Colnago? Or, for even more niche, Starley? Spin Cycleworks?
Based purely on looks/brand/something a bit different, I’d go for the Look 675 in a heartbeat. Check out the pics/review on here.
Upgrading to RS80s will save
Upgrading to RS80s will save about 330g.Upgrading to Ultegra will save between 300g and 500g – can’t locate weight for Tiagra.
Call it 700g total reduction. Nothing wrong with that, but if you’re going to do it, don’t do it just for weight.
As for the frame, ok it’s no lightweight, but then weight isn’t everything, by a long shot.
As per my post on the Aero bikes thread, I’m not blowen away by the change in feel due to my ~500g bike weight reduction. I get considerably more difference from losing 4kg of body weight.
If I remember correctly, the
If I remember correctly, the iphone doesn’t actually have GPS – it triangulates it’s position based on cellphone towers*, aided by the location of local wifi networks**. I’m not sure if altitude is calculated based on the same triangulation (that sounds flaky) or a co-ordinates lookup of your location against an OS map with altitude data derived from there.Contrast all that with a Garmin, for example, which is a ‘true’ GPS device relying on satellite positioning.
Over a 100km ride, my phone and Garmin differ by maybe 1km distance, so not a big deal. I’m not sure about difference in ascent.
Overall, I think the phone app is definitely useful. If I have the battery life, I record on both, then if I’m in a rush later, upload from the phone (easier) rather than booting the laptop and hooking up the GPS, which is a bit of a faff.
* = If a phone has ‘proper’ GPS, then in theory you can still navigate when in aircraft mode (i.e. no phone or data signals), but the iphone 4 will do no such thing.
** = This may have changed for the iphone 5 when maps data switched from google to Apple.I got this phone ages ago, so I may be talking bollocks, but hopefully not!
I’ve dropped my body weight
I’ve dropped my body weight from 75 to 71kg, and my bike weight by about 530 (mostly rotating) grams. I feel noticeably quicker. However, I thought I would notice it more from the bike, simply because it was an overnight decrease, as opposed to the gradual (over about 3 months) body weight loss. However, the opposite is true. My strava results bear this out as well.As for aero, well I ride in Derbyshire and the Peak district, so for ‘aero’ think ‘crosswind blowing my deep-section wheels across the road’ and ‘do I have to lug the extra weight up this hill?’ It would be fun increasing the run home into Manchester from 27mph to 29mph or whatever in the chaingang, but we’re already drafting off each other at that point anyway, so the benefit of one aero bike in a mass of bodies and other bikes will be negligible.
I think some aero kit looks cool (I’d love to try a Cervelo S5 on, say, Zip 404s) but I can’t say that it would be right for me.
Nice! What’s it cost?
Nice! What’s it cost?Looking good!
Looking good!Ok, different question then –
Ok, different question then – why is it your dream frame? Are you particularly fussed about the construction/geometry, or is it that it’s a decent quality frame, it fits you, and you think that the colourway you want looks smokin?!Not having a go at all, that seems like a perfectly good way of choosing a frame to me. However, it does raise the question of how many frames you’ve looked at. Some of the frames that are a bit more difficult to get hold of look awesome. You checked out Dedaccai for example?
Or to look at it another way, let’s say you spend £3k on the complete bike. In fact, let’s knock a bit off for a LBS deal, say £200. A quick Google search suggests that Athena seems difficult to obtain standalone, but Chorus is £900, so it would need to significantly undercut that. Say £600, + £300 for the Fulcrum R3 wheels. You’ve then spent circa £2k on the frame and finishing kit. If you don’t need the finishing kit (and you probably won’t get that much for it), ask yourself whether you could have a nicer frame for £2k? That’s big money – Condor? Deda?
