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Thanks Chris, but Tester went through a series of available gearing a while back. I can't really afford to lay out for both a chainring and sprocket, so am using my existing 18T on the back.
Do remember that whatever sizes you use, everything must be in good condition to get good results: it's no use having a perfect size sprocket which is so worn that the chain doesn't run smoothly.
Went I started reading this sentence I assumed you were going to mention my slipping saddle!
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48x18 with a 25c tyre. It's gonna hurt like fuck anyway, 1 inch isn't gonna make much difference either way.
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It's gonna hurt like fuck anyway, 1 inch isn't gonna make much difference either way.
Maybe not on length, but an extra inch on width is relevant.
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Last Weds was the first time I had cycled more than 3kms in about 9 months, I decided to use aero bars for the first time. 48hrs later and my forearms began to ache, so much so it affected my hands and I could barely tie my shoelaces on Saturday...
Anyway the ache has nearly gone, but is this usual and it just gets easier, or should the pads be nearer my elbows?
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Left and then left? Won't that take you back up the hill? Hrumph.
e: Just realised that's the residential bit at the very end of Knatt's Valley. Not so bad, I guess.
Is this the "alternate finish" route that they use when the usual finish is out of action due to roadworks etc? I've done that once in the past and it makes for an even worse left hander than usual - must be almost a full 180 degrees back on yourself thinking about it!
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National champs up. BTTC.
2000' of climbing over the 2 laps.
Banging.http://www.nationalroadchamps.co.uk/championship-course/#/.UymwjlF_tk8
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Went I started reading this sentence I assumed you were going to mention my slipping saddle!
No, I wasn't thinking about your problem, but my own in my very first 25, when aged 14 I started in the Staines and District CA medium gear 25 (Bells of Ousley course).
I don't think *any *of my kit had been bought new by me. The frame I had acquired by swapping, but I think virtually everything else had been donated by senior club members (they were all senior to me, of course).
Not much of their largesse was in perfect condition, and I had achieved my medium gear with a steel 51 ring of doubtful origin which was certainly in less than perfect condition.
After about three miles I could see my minute man. Naturally I was dead chufffed, because even though for all I knew he was a useless laughing stock as a rider, he was definitely an adult and I was a kid. There was no doubt I was going to catch him, but just as I got within spitting distance....my chain came off. I stopped and replaced it, rapidly nearly recaught my adult, and the chain came off again. This happened three or four times before I gave up and abandoned, bitterly disappointed.
The lesson, which I did not fully absorb on that first occasion, is that if anything can possibly go wrong with a bike, it will do so during a race.
Therefore the first requirement of any piece of racing kit is reliability.So no, I wasn't thinking about your saddle.
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Evolutionary link for the "tester" gene found.
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North Norfolk Wheelers club 10 today. My first ever test. Pissed it down.
28.11. Trying not to be too disappointed, as it is my first one and I now have a time to beat in a couple of weeks. Felt like I could have gone harder in places. Lots of work to be done. -
Nice one. You'll take chunks off in decent weather and when you get used to pacing.
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Just crunching my numbers on Strava from Sundays TT. In hindsight, I totally overgeared: there were sections where I was pushing 20mph at 80rpm!, what was I thinking?
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If you can't push at 80rpm on the slow bits, you'll be severely undergeared on the fast bits (unless you cheat and use variable gearing)
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^ In that case I cheated with variable gearing.
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Seriously considering building a medium gear fixed TT rig, if only to take the gearing element out of the equation
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X-Post because relevant:
"Here's what the subjects did carb-wise before and during these time trials: - 15 minutes before time trial: gel containing 28 grams of carb;
- at the start of the time trial: place gel blast in cheek and leave it there until it dissolves, at which time it's replaced with another gel blast; the goal is to have a constant stimulus of carbohydrate in the mouth to produce the boost seen in mouth-rinse studies;
- at 15K and (on the men's course) 30K of time trial: a bottle of carb-electrolyte sports drink, consume as much as possible within one minute; this was based on the real-world characteristics of the time trial courses in London, in terms of where it would be practical to drink.
Very interesting stuff -- and given the affiliation of some of the researchers (i.e. Australian Institute of Sport), I wouldn't be surprised if that was the actual nutrition protocol used by Australian cyclists at the London Olympics."
http://www.runnersworld.com/nutrition-for-runners/combining-caffeine-and-beet-juice
- at the start of the time trial: place gel blast in cheek and leave it there until it dissolves, at which time it's replaced with another gel blast; the goal is to have a constant stimulus of carbohydrate in the mouth to produce the boost seen in mouth-rinse studies;
Sam
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Time Trial / Time Trialling / TT
Posted by
@hippy
Clubman confesses to 'mechanical doping'; perhaps not up there with Armstrong on Oprah for media attention, but more surprising.
46/17 is worth a try too, but the most important thing is to be be sure that your roll-out is under 18'10.2" before you get to the gear check. Each 1mm of change in the section height of your tyre is about ⅝" change in roll-out, so if you're trying to nail that sweet-spot between 71" and over-geared, tread thickness makes a material difference between tyres of the same casing width.