Chalupa102

I'm finally getting around to installing my Cateye Vel05 Cyclocomputer. I've read thru all the directions and they don't make it really clear. Where exactly should i place the magnet, meaning how high/low should it be on the rim? I would think that's if it's too high or too low it could throw off the speed and distance.

10 Wheels

Location won't make a difference.

It just has to be close enough for the pick up unit to work.

dorkypants

Think about it: no matter how close to or far from the rim the magnet is, it goes around the same number of times at a given wheel speed. Therefore, it makes no difference to the accuracy of the computer.

What makes a difference is the closer to the rim, the greater the distance from the fork blade (in general)--which may affect whether you can get the magnet and its pickup in reasonable proximity. There's also a small increase in rotational inertia towards the rim, but at practical bike speeds, it should be negligible. If you're OCD about wheel-balance, you might choose a spoke "most opposite" the valve stem, but again, in practice the difference is likely to be marginal.

Chalupa102

Thanks a lot for the help guys. I just got back from doing some errands and i checked the cyclocomputer distance vs. google maps and it was the exact same. It was definitely awesome to how fast i was going.

10 Wheels

How fast do you get?

Chalupa102

The max was 29.4mph on the steep hill before the end of my road and the average was about 15mph.

10 Wheels

Wheeeee