Feed aggregator

Re: Close passes BY cyclists

Cycling UK Forum - On the road - 14 May 2016 - 8:04pm
pwa wrote:A prat is a prat whether he's on a bike, driving a car or whatever. Content yourself with the sure and certain knowledge that his next close encounter with the tarmac can only be a few miles away.

Re: Lightweight touring - How much can you pack in the bags?

Hi Natural Ankling,
this is the design of the frame - there is a bend in the seat tube. Have a look at a bike belonging to someone else.

Re: Lightweight touring - How much can you pack in the bags?

Well......I was joking about the rider
Not my eyes so explain that with digital? camera

Re: Janet Street Porter

Cycling UK Forum - On the road - 14 May 2016 - 5:41pm
reohn2 wrote:Bicycler wrote:ANTONISH wrote:IMO pedestrians often get the worse of things- being herded to inconvenient crossings and always having to be aware that the pavement may not always be exclusively used by pedestrians.
Nah, I don't buy that. Pedestrians are also victims of the tyranny of the motocracy but cyclists have it worse. Pedestrians mostly have pavements to their own exclusive use. Cyclists virtually never have their own exclusive space. Cycle tracks have the same kind of rubbish crossings that pedestrians have. I am confident that I could walk any road in the country that I am legally permitted to if I so wished, yet there are a good number I could not cycle on because of the danger. We don't have adults who feel unable to walk across town because of the perceived danger of doing so, yet huge proportions of the population feel unable to make ever simple journeys by cycle because of fear of being injured or killed. Pedestrians may use all of the rights of way network, any newly constructed cycle paths and all public space. Cyclists may use only a small proportion of the rights of way network and shared use cycle facilities are often poorly suited to their needs.

Absolutely spot on!
And it's a disgrace that it continues as it does,with cycling organisations(no names mentioned)folding meekly to the motoring bullies.

And there are no cycling bullies riding through red lights on pedestrian crossings and riding too fast on shared use paths or cycling on dedicated pedestrian paths ?

Re: Lyon to Ljubljana across the Alps: route advice

andymiller wrote:before turning right to Kranjska Gora
This is one of the least entertaining climbs in the Alps. It's only about a 600m net climb over the Wurzenpass alias Korensko sedlo, but this is no switchback pass, rather most of the height is gained in a prolonged straight sections at about 1:5 steepness. It was bad enough going down it.

Re: One bike for climbing, one for descending?

Cycling UK Forum - Racing - 14 May 2016 - 4:40pm
That's really interesting. And if it's not a dumb question, is there anything to stop a rider being given the bike with a downhill frame as (s)he crests the mountain? And then, swapping to the uphill bike for the next ascent. Maybe the changeover would cost too much time in a close race.

Re: One bike for climbing, one for descending?

Cycling UK Forum - Racing - 14 May 2016 - 3:34pm
Peugeot used to do it in the 1970s, certainly. If you download a copy of 'The Custom Bicycle' - a wonderful book - from the Classic Rendezvous site...

http://www.classicrendezvous.com/public ... icycle.pdf

...and scroll to page 122, you'll find this (remember this was in the '70s - I've no idea what goes on nowadays, although the first paragraph still holds true):

Most professional riders request the shortest possible chainstays and the smallest frame possible. Frequently, riders select a frame that years ago would have been considered too small for their physique. The popularity of the small frame is simple: the smaller frame is usually stiffer.

The ideal design that Saugier [head of technical research at Peugeot bicyles at the time] and his colleagues use for the professionals is composed of 73- to 73.5-degree angles. They then vary the fork rake [/offset] and the caster [/trail]* for the use of the bicycle. Usually a professional racer will have several bicycles and if possible will have a bicycle with a 30- to 35-mm. caster for climbing compared to a 75-mm. caster for downhills.

Although the shorter wheelbase gives a stiffer ride, there have been problems with high-speed handling, particularly when descending large mountains. To remedy this, Peugeot supplies the team riders with bicycles that have a greater degree of caster for long mountain stages.

At Peugeot, they believe that the caster determines steering ability and stability at high speed. The caster dimension can be increased in basically two ways: by decreasing the head angle or increasing the fork rake. According to Saugier, the ideal for the team professionals is to have 73-degree parallel angles which give the ideal length top tube (this refers to standard-size frames—not the smaller or the larger frames). This is ideal when combined with a fork rake of 35 mm. and a caster of 70 mm. This design is specifically intended for racing, however.

One sentence in the last paragraph isn't quite correct: Caster (trail) can be increased in basically two ways: by decreasing the head angle or decreasing - not increasing - the fork rake. Increasing the fork rake would decrease the trail. It's confusing!

*With bicycles, caster is more commonly referred to as trail, although they're the same thing, just as rake is the same thing as offset.

AFAIK 'optimum' trail for a racing road bike is considered to be around 60 mm - that way you get a jack-of-all-trades, at least for tyre widths from around 23 to 28 mm. Wider tyres have 'pneumatic trail', which means they work better with less geometric trail.

Basically, low trail is more stable when climbing, especially when out of the saddle - the bike tends to be very inert, doesn't respond to lean, just steering, and as long as you don't steer, it tends to stay straight and go nowhere other than up - whereas high trail is more stable and less twitchy at high speed - motorcycles have around 80 mm of trail, but their speed parameters are obviously a lot higher. Mountain bikes work best with high trail, apparently, but you want them to be 'jinky' at low speeds, the opposite of what you want a road bike to be when climbing Mont Ventoux. That's my interpretation of it, anyway, but it's such a complex subject I might be wrong!

If that all sounds like the old Abbott and Costello sketch "Who's On First?" (I hadn't a scooby about any of it myself until a couple of years ago) I'll knock up a couple of illustrations later to show you what high and low trail look like, but I'm away out on the bike now.

The likes of Brucey and 531colin know more about this stuff than me and have vastly more experience, so they might chip in if they see this thread.

(I just hope Peugeot's 1970s set-up wasn't what prompted you to ask the question in the first place, or I've just wasted an awful lot of time!)

Re: Close passes BY cyclists

Cycling UK Forum - On the road - 14 May 2016 - 3:26pm
sapperadam wrote:I was actually thinking about posting something along these exact lines.

I've been walking to work recently - living about ten minutes walk door to door from the office at the moment - and four times in the past three days I have been nearly hit by someone on a bike. Twice was the same person and they have received a gobful from me. This all happened on the same stretch of footpath which has been narrowed considerably because of building works. The problem is though that each of these persons would likely not be in the same camp as those likely to be on here. They are almost exclusively riding cheap mountain bikes, but the non-cycling community would put them in the same camp.

This mornings's idiot looked right at me as he rode past me (which is when he got a mouthful) but totally ignored me otherwise - he was shortly followed by a unicyclist!! Who was on the road but then jumped on the path to avoid the traffic lights!!

I cannot disagree re the folks on cheap "mountain bikes."

Coming out of the depot on Thursday evening, waited for a decent gap in the traffic, turned left onto the road and a bit further along, such a person on a "cheap mountain bike" nearly collided with me; fortunately I saw him and emergency-stopped, because with his hoodie hood pulled up (on a glorious sunny evening ) he didn't see me until a last-minute swerve, by which point I was stationary with both feet firmly on the floor. To come close to colliding with me like this, the chap had ridden off the pavement and was at that point riding the wrong way on a busy main road...... . Motorists seeing that sort of behaviour would likely tar all other cyclists they see as similar ijits.


Re: Sally Shalloe

Cycling UK Forum - On the road - 14 May 2016 - 3:16pm
..... Or maybe if all red lights protecting pedestrian/Toucan crossings had cameras that gave automatic 6 points for passing at red they would be taken more seriously?

I was half-way riding across a Toucan crossing a couple of weeks ago, the road lights long time red, and a LGV approached far too fast, it was obvious it wouldn't stop so I did..... it slid to a stop well over the crossing, fortunately no-one was crossing from the other side or they would have been hit. The crossing is on lights into a big roundabout, much further and the LGV would have taken out the traffic on the roundabout too. I have driven that route, and there is no excuse- sighting of the lights on approach is excellent.


Re: Cycling opportunity Keswick -Kendal

Cycling UK Forum - On the road - 14 May 2016 - 2:02pm
Tangled Metal wrote:the road has been opened.

An e-mail headed 'Cumbria is Open!' from Independent Hostels Guide turned out to be about this - no-one would gather from reading it that cyclists and bus travelers have in fact been passing that way for months.

Cyclist killed in three-rider collision in Lancashire

Cycling UK Forum - On the road - 14 May 2016 - 1:14pm
From BBC news online:

"A cyclist has died after colliding with another rider on a country road.
The man, 50, suffered major head injuries after falling from his bike at about 22:00 BST on Thursday.
A woman cycling in front of him came off her bike on Hill Lane in Colne‎, Lancashire, causing him to collide with another male cyclist, police said.
He was taken to Royal Blackburn Hospital and later transferred to Royal Preston Hospital where he died the next day.
The other male rider, 40, was uninjured while the 19-year-old woman suffered bruising to her leg.
Sgt David Hurst, of Lancashire Police, appealed for witnesses to come forward and said his "thoughts are with his family" after these "tragic circumstances"."

http://www.bbc.co.uk/news/uk-england-la ... e-36293065

Re: or in the air - speed trap gets its man?

Cycling UK Forum - On the road - 14 May 2016 - 1:11pm
Not me.
Our parrot was in her cage.Parrot.jpgButter wouldn't melt.
Looks cuddly eh?
You try putting your hand in there!

She likes me though.

One bike for climbing, one for descending?

Cycling UK Forum - Racing - 14 May 2016 - 12:34pm
Is there a case for eg Tour riders switching bikes at the top of a climb for the descent? There must be design tweaks that could make a bike better for going down than going up, and vice versa. I'm guessing they would have done it if it were possible. But maybe people have some ideas!

or in the air - speed trap gets its man?

Cycling UK Forum - On the road - 14 May 2016 - 12:17pm
Police snap parrot going at 1.5 times speed limit


but who is going to pay the speeding fine?

Re: Before Pulling In For Car - Indicate or Not ?

Cycling UK Forum - On the road - 14 May 2016 - 12:11pm
I pull in / over and give the thumbs up with an outstretched right arm when Im happy for them to pass..(ie safe for both us ). It seems to work, plenty of drivers acknowledge it with a thanks of sorts - happy days

Re: South Downs Way on a touring bike ??

matt_twam_asi wrote:mercalia wrote:The Downs Link at that time was not very well surfaced, I hope it is better now?


(OK, I know that the southern part is better now according to Squeaker. Everything else is still hit and miss.)

That's 'better' in a 'fat tyred' bike sort of way: still not all bikes / weather

Re: First cycle tour

I'd go east or west from Bristol as you're unlikely to see that on an end to end. South Wales seems attractive but heading to Wiltshire will be a gentler introduction to touring.

I've recently done my first tour and was doing 50-60 miles a day but I think 40-45 would be a better number for planning. It may well end up as 50+ after a few wrong turns and unexpected road closures anyway.

NCN routes are mostly well signposted but it does vary depending on how much volunteer time and council support Sustrans has in an area. They do also often go the long way round, which I think is in order to pass close to more houses, to meet their "within x miles of y% of the population" aim, but that may be less annoying for touring than transport.

Re: First cycle tour

Since it will only be a short test-tour, not very far from home, I'm not too worried about things going tits up.

But really, barring injuries, the worst that is likely to happen is that it takes me an hour or two longer to reach my destination than expected and I get a sore backside. I'm more concerned about route-finding delays than getting physically tired.

As they say, what doesn't kill you makes you stronger.

Anyway, the Devon C2C does look interesting (if a little boringly flat). I actually did the walking version in 2012 across Dartmoor and Exmoor between Wembury and Lynemouth (6 1/2 days with ankle tendonitis and other ailments for the last 4 days so I'm used to pushing on regardless ).

Are the NCN routes well signposted generally? I'll be taking GPS gadgets and maps with me but I prefer it when I can progress smoothly without spending much time orienteering.

Re: First cycle tour

Can you plan a route that leaves you some alternatives? I don't know that part of the country, but in most places, it's possible to plan for at least a couple of alternatives. If you are going to stay in B&Bs, you could pick one that is 50ish miles away, then plan a route with a scenic loop, perhpas with a tourist destination or a secondary goal? At or near the end is best. Then you can decide on the day if you feel up to the longer route.

I often do that sort of thing (at shorter distances) travelling with kids, because they make the day unpredictable

Re: First cycle tour

You could be right about the mileage since I'm only used to short commutes and I may try a loaded day ride beforehand.

However, I would rate my fitness as very good and I'm used to walking for 7+ hours carrying 15+kg on multiple days on e.g. coastal paths which can be rather undulating. So I'm sure I'm capable but that doesn't mean I won't find it unexpectedly challenging.
Syndicate content
  • Patron: Her Majesty The Queen
  • President: Jon Snow
  • Chief Executive: Paul Tuohy
  • Cycling UK is a trading name of Cyclists’ Touring Club (CTC) a company limited by guarantee, registered in England no: 25185. Registered as a charity in England and Wales charity no: 1147607 and in Scotland charity no: SC042541. Registered office: Parklands, Railton Road, Guildford, Surrey GU2 9JX.

Copyright © CTC 2016

Terms and Conditions