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7

This will run in python (only 3.X, not 2.7), a free to install programming language. Simply save the following as a file ending .py - e.g. timetrials.py. Then open IDLE3 (start menu), and open the file (Ctrl+O). Finally, press F5 to start it. import datetime from operator import itemgetter def get_int_input(prompt, min_=0, max_=None): """Get a valid ...


6

Some personal thoughts/opinions: If you're not riding much longer than an hour or so, you might not need much. Perhaps a sports/electrolyte drink that contains sugars will suffice and be convenient. I use mainly cheap gel bars for a sugar hit, but they get quite boring and eat away at your teeth. Flapjack, oats, etc are good for a bit of variety but ...


6

I had the same problem as you when I bought my rollers, the best advice is to place the rollers in a door frame. Start by holding onto the doorframe and get used to spinning with one hand on the bike. You should always try to maintain a high cadence (and speed) when you first start, the momentum will help you balance. The plan is to pedal in a perfect ...


5

Why would you need chains and cassettes that cost in excess of 300 dollars? Several reasons: You're a professionally sponsored racer, money is no object and you want to cut every gram of weight possible. You have way too much money (generally, people who buy top end equipment fall into this group). It looks cool among a certain crowd. In picking your ...


4

There are a few different hand signals to use depending on what the situation is. In general, making a fist behind your back or with your elbow out and bent downward signals to other riders that you are planning on making a stop, potentially a very sudden stop for unexpected reasons; When closing in on road hazards, pointing them out is extremely helpful to ...


4

I am not sure you are after "The quickest Boost food" - seems the problem you have is likely to be over an extended period. If your problem is say "they leave me behind up big hills" then maybe a "boost" is what you are after, but if its just keeping up over the duration of the ride, quick boost food is not good. The problem with the likes of Jelly beans, ...


4

What are the other cyclists in your group eating? I go out for similarly long rides, and most people don't eat anything on the ride. I would say to make sure you are well fed (but not overly full) before the ride starts, and you probably won't feel the need to eat something for the ride. 50 KM at an average speed of 35 km/h will mean that the ride is over ...


4

I doubt many people would change cassette based on occasion, but I suppose it is possible - it isn't too onerous a task to swap a cassette out. But certainly I (and I suspect others too) will fit a cassette once and it will stay on the wheel for its lifetime. I think the key thing with a cassette choice is basically how close (in terms of number of teeth) ...


3

To remove the crosstop levers from the bar tops you will have to: Remove the inner brake cables Remove the bar tape Remove the brake cable housing between the main brake levers and the crosstop levers and the crosstop levers and the front brake / frame boss. Remmove the crosstop levers from the bar (they should be held on by a simple clamp with 1 allen ...


3

One option is RaceSplitter. This is an iOS app, costs $35. You will need a suitable iPad, iPhone or iPod Touch to run it on. You can enter a start list in advance. Then during the race, you just have to enter the rider number as they cross the finish line, and it will record their time. You can then publish the results on the website, and export to Excel ...


3

Mars Bars are not that great for cycling. Yes, they have quite a lot of calories, so will give you some energy. But most of that is simple sugars, so it may be a quick energy boost, but soon followed by an energy crash. Also Mars Bars have quite a lot of fat (about 17g per 100g), so this can not be easily digested while cycling hard - it could just make you ...


2

There are three good reasons why professional racing teams care about weight Hills Margins of victory are often VERY small Racers run in packs for aerodynamic reasons. If you can out-climb an opponent enough to drop him from your pack on a climb, then he probably won't catch up on the flat - because the he is working against air resistance and the power ...


2

Energy gels such as GU Energy gels are a pretty common quick acting energy source. For a more natural source, you could try honey


2

I wouldn't worry too much about crosswinds with 60mm depth. Unless you are a very light rider or live somewhere really windy! Each wheelset handles crosswinds slightly different due to their shape/profile. So it's worth reading the reviews. One thing to bare in mind is what kind of riding you do and how fast you ride: If you ride in a bunch and shelter ...


2

You have the seat stay mounts on the frame (those are the two thin tubes that go from the rear wheel drop outs to the top of the seat tube). What you need is mounts on the rear wheel drop outs. Typically, they are part of the dropout and/or frame. In your case, you have none. That being said, the P-Clips and Tubus Clamps will not be useful. The Tubus ...


1

I think this is quite a broad question, so I'll highlight a few parts of the bike: Seatposts/saddles: Probably interchangable Forks: You wouldn't want to swap them, and chances are a beefy mountain fork wouldn't go into a road frame anyway, even if you could get the right headset. Gearing: Road bikes typically have higher gearing than mountain bikes ...


1

A simpler alternative would be to use inline barrel adjusters to join the two sections of outer. That would avoid having to re-wrap the bars and means you could put the levers back in if you wanted to. Just release the inner wire from the brake, pull it out as far as the interrupter lever, remove the lever, inster the barrel adjuster and re-thread. Then wind ...


1

We've used an app for android phones made by Liuto. It was great, easy to learn/use and cheap --only $1.11. Basically, when each rider goes off by start number, you tap their corresponding number on their return and the calculation of their time versus overall elapsed time is complete. Snap!


1

It's about keeping your energy up NOT about somehow generating 5kmph more from food. You'll go faster through training but it won't help if you bonk half way through a ride. I tend to "fuel" up before a ride then eat as I go along; usually rice cakes or cereal bars. For a bit of emergency energy if I'm flagging I'll go with a gel (some give me cramps tho) or ...


1

Skratchlabs has made a series of youtube videos for lots of types of food for different types of energy. You may want to thumb through them in order to find something which works for you (your stomach may not agree with everything). One thing I particularly like about the Skratchlabs videos is that they have a nice way of packaging real foods in foil so you ...


1

This advice - from above- could you get killed: Firstly your tires must be hard - near the maximum pressure written on the side wall. Riding soft tires is a recipe for death under oncoming traffic, because they don't have as much grip and just slide out from under you. It's junk from a self-appointed expert. Sorry: yes, you've cycled 50 years, but you're ...


1

This is a very interesting question. Aluminum vs Carbon. Well it be long before the two will be in the same price range - on it's way in the very near future. I have an Aluminum and a Carbon frame road bike. The aluminum bike has a longer wheelbase, more relaxed seat angle (72.5 vs 74) and square formed stays, and deflects most of the bumps and vibration ...



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