Friday, November 06, 2009

Bronte training ride on my own

It looked like rain this morning, so I was the only one who was game to do a training ride on the road bike. I had packed everything into the car the night before, and woke at 04:50 in the morning. There was nothing that was going to stop me from riding after all that effort!

I drove to Lord Street, Botany and rode from there. The ride is quite challenging, particularly the climbs around Bronte, which I did three times. Once the long way round, and twice the slightly shorter way around.

These rides make me feel terrific afterwards. It must be the endorphins, because I now (an hour after getting back) feel great!

Click here for the map of the ride.

Tuesday, November 03, 2009

Screws on ortlieb panniers

The only real maintenance that needs to be done on ortlieb panniers is to check that the screws on the mounting clips are tight. These have a tendency to come loose over time.

I find that every few thousand kilometers, one of them can be a little loose. If you ride on very rough roads, this can happen much quicker.

Some people like to use a touch of loc-tite on these screws to keep them tight. This is a good idea. I don't bother because checking them when I do regular maintenance is no hassle.

If you are going on tour, you should consider taking a spare screw, in case it comes loose, and you lose it. Take the existing screw to a hardware store, and they should be able to match it.

The picture below shows one screw coming off my pannier hook which I noticed this morning.

Monday, November 02, 2009

Optimal tyre pressure

Most people run their tyres too hard. Despite what you may have previously thought or heard, higher pressure does not necessarily equal faster.

Up to a certain point, higher pressure tyres are faster, but then the benefit stops for pressures above that. This pressure threshold depends on the tyre size, and the loads being supported.

Narrower tyres demand higher pressures, as do larger loads.

Jan Heine from bicycle quarterly (an excellent publication) found after extensive testing that the optimal tyre deflection is 15%. This means that when riding along, the tyre thickness (when looked at from the side) should be reduced by 15%. Any more, and your pressure is too low, which will slow you down. Any less, and your pressures are too high, giving you an unnecessarily uncomfortable ride.

Higher loads will deflect the tyre more, resulting in higher pressure requirements. Fatter tyres will have less deflection for a given pressure than a narrower tyre.

The front tyre generally carries less load than the rear in a conventional bicycle. As such, your front tyre should be inflated to a lower pressure than the rear.

On my 40mm Schwalbe Marathon XRs, I find that having the rear at 65psi, and the front at about 60psi to be optimal. The ride is ever so smooth, and no slower than using a higher pressure.

Sunday, November 01, 2009

Week ended 1st November 2009

Monday

no riding :-(

Total: 0kms


Tuesday

19:00 - rode to glebe (8kms)
22:15 - rode home (8kms)

Total: 16kms



Wednesday

09:00 - rode to lord street, botany, via newtown (15kms)
18:30 - rode to squash at mutch park (3kms)
18:00 - rode home via newtown(16kms)

Total: 34kms



Thursday

09:00 - rode to lord street, botany, via cooks river (18kms)
18:00 - rode home via newtown (15kms)

Total: 33kms


Friday

09:00 - rode to lord street, botany, via newtown (15kms)
17:00 - rode to pub in city (9kms)
02:00 - rode home from ashfield station (1.5kms)

Total: 25.5kms


Saturday

no riding

Total: 0kms


Sunday

18:00 - rode round the bay loop (12kms)

Total: 12kms


TOTAL FOR WEEK: 120.5 kms

Friday, October 30, 2009

Do we want cycling to become more popular in Sydney?

Most sydney cyclists are advocates for getting more people out on their bikes. I too have tended to encourage cycling wherever possible. I think that cycling is the best way to get around, so why shouldn't I want to share that information with the general population.

Recently I have been thinking that maybe the current situation is actually preferable. I do still think that better driver education so that cyclists rights are respected is required. But other than that, I think the current situation where cycling is a fringe activity may actually be good.

There are a number of reasons I think this:

1. Less bicycle theft. There is no denying that bicycle theft in Sydney is far less of a problem compared to cities with high rates of cycling like Amsterdam, Portland, etc. I attribute this largely to the reduced demand for bicycles

2. Parking is easy. There is always a free pole and place to lock my bicycle. I think this is because there aren't many bicycles around. When I was in the netherlands in 2007, i found bicycle parking much more difficult.

3. Rules are not enforced. In the netherlands I got a fine (which never arrived in Australia thank goodness) for riding in an area where I wasn't supposed to be riding. There was a sign saying it was a pedestrian only area, written in dutch >:-| These sorts of rules just aren't enforced in Australia. I break a lot more rules (lets not get into a heated discussion about this bit if possible :-) ) compared to that netherlands tour, and I have never been fined. I think if cycling became more the norm rather than the exception, that rules would have to be enforced to keep things running smoothly.

4. There is no bicycle traffic to contend with. Cars are easy to overtake in peak hour. More bicycles would mean more traffic I think.

5. Taking bikes on trains out of peak hour is easy, because there aren't many others doing it.

6. At work I can bring my bike into the office. If everyone rode, there is no way that this could be possible. Same at the pub - i take the bike inside, but couldn't do it if others did.

There are probably a few other reasons that I haven't thought of too.

I've also posted this discussion on Sydney Cyclist to see what people think. Click here for the Sydney Cyclist discussion.

Monday, October 26, 2009

Movember and Men's Prostate Health

I am growing a mustache to lend my support to the Movember cause. Movember is about raising money for men's prostate health.

Please donate to the cause, and have a laugh at my ridiculous Mo by clicking here.

I will be starting clean shaven on 1st November.

Sunday, October 25, 2009

Week ended 25th October 2009

Had a cold for most of this week, so couldn't ride :-(

Monday

no riding :-(

Total: 0kms


Tuesday

no riding :-(

Total: 0kms


Wednesday

no riding :-(

Total: 0kms


Thursday

no riding :-(

Total: 0kms


Friday

08:40 - rode to lord street, botany, via newtown (15kms)
09:50 - rode to banksmeadow for coffee (2kms)
10:20 - rode back to lord street, botany (2kms)
18:50 - rode to pub in the city (9kms)
18:00 - rode home via newtown (11kms)


Total: 39kms


Saturday

18:50 - rode to pub in the city (10.5kms)
18:00 - rode home from ashfield station (1.5kms)

Total: 12kms


Sunday

no riding

Total: 0kms


TOTAL FOR WEEK: 51 kms

Columbus SLX "star profile" racing bicycle.

Columbus SLX "star profile" racing bicycle.
A work of art :)

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