Wheel Weight: Why the Number on the Box Misleads

The front-plus-rear figure is the easiest thing to compare and one of the least useful — here's what a workshop weighs instead, with links to the original post.

Weight is the one wheel spec that's a hard number, so it's the one buyers compare. It's also, on its own, close to meaningless. Here's how one workshop thinks about where a wheel's grams actually matter, with the source.

1. Light rim, stiff build

The workshop's goal is simple to state: get the lightest possible rim and build it as stiffly as possible. Hub weight and spoke weight it barely worries about — not that heavy is good, but it isn't where the attention goes. A Gokiso hub, for instance, is heavier than an old PowerTap SL+ (around 428 g), and the workshop has never once criticised it on weight. The rim is the part whose weight earns scrutiny.

Source: Nomu Lab #7095

2. Why total weight misleads

The front-plus-rear total that makers advertise is easy to quantify and easy to compare, which is exactly the problem: it's a clear-looking number that doesn't reflect how a wheel rides. Someone with an eye for it might notice a rim-brake rear laced equal-count with a non-drive radial side, or a narrow flange — the things that actually decide a wheel. The total-weight figure conveniently sails past all of that, which is what makes it such a handy way to sell a wheel to someone who doesn't know to look.

Source: Nomu Lab #7095 — On rim-less weight

3. Built heavier, felt identical

Here's the test that settles it. The workshop routinely rebuilds wheels that came laced all-CX-Ray (or all-Aerolite) and makes them heavier on purpose — putting thicker, heavier spokes on some positions for a better-balanced, better-driving wheel. Not once has a rider come back saying they can feel the extra spoke weight making the wheel slower. Yet by the total-weight yardstick, that rebuild looks worse. The number went up; the wheel got better.

Source: Nomu Lab #7095

4. The number makers won't print

If a brand genuinely wanted to inform buyers, it would publish the rim-alone weight alongside the wheelset total — even a slightly optimistic figure would help. Almost none do. The workshop knows the real measured rim weight of a great many factory wheels, and can quote its own rims instantly — 462 g, 375 g and 435 g for three of its builds — while not even knowing those wheels' front-plus-rear totals, because that's not the number that tells you anything. If you only get one figure, you want the rim's. We've collected those figures into a measured rim weight database — the rim-alone numbers makers rarely print — and distilled them into a light-rim buying guide.

Source: Nomu Lab #7095