woom GO 1 vs GO 2

The GO 1 is a balance bike — 12-inch wheels, no pedals, no chain — and the GO 2 is a pedal bike with 14-inch wheels. So this is not really a choice between two products; it is a question about which stage your child is at. Measure the inseam: under 14.4 inches is GO 1 territory, 16 inches and over is the GO 2, and between those two figures woom sells nothing that fits.

Head to head

The 1.6 inch gap woom does not advertise

Put the two inseam ranges next to each other and something awkward falls out. The GO 1 fits a 10.0 to 14.4 inch inseam. The GO 2 needs 16.0 to 19.1 inches. There is a 1.6 inch hole between them, and the saddle heights say the same thing: the GO 1's post tops out at 13.9 inches and the GO 2's starts at 15.5.

A child with a 15 inch inseam has outgrown the GO 1 and cannot yet reach the GO 2. That is not a rare measurement — it is roughly where a typical three-year-old lands. It is the single most useful thing to know before you buy into woom's range at the bottom, and it is why we would not buy a GO 1 for a child who is already close to the top of it.

Compare that with Strider, whose 12 Sport covers a 12 to 18 inch inseam in one bike, or Prevelo, whose Alpha One pedal bike drops to a 14.75 inch saddle height. Neither brand leaves a gap in the same place. woom builds narrow, precisely-fitted bikes and expects you to move through them — which is a defensible philosophy and an expensive one.

Buy the GO 1 if…

Your child measures a 10 to 14 inch inseam, which in practice means between about 18 months and three. The GO 1 has the lowest published minimum saddle height of any balance bike we have found at 10.2 inches, and almost nothing else fits a genuinely small toddler.

You want the brake. woom fits a child-sized rear mini V-brake with a hand lever, so a lever squeeze gets learned before pedals ever arrive. It is a small head start and it shows up later.

Weight is your priority. At 6.4 lb the GO 1 is the lightest bike in our registry — about a quarter of the body weight of a typical two-year-old, who will pick it up off the ground dozens of times a day.

Buy the GO 2 if…

Your child measures a 16 inch inseam or more and has already learned to balance and glide. The signals that the balance stage is genuinely finished are on when to switch from a balance bike to a pedal bike — the short version is that they should be gliding with their feet up and steering confidently, not merely walking the bike.

You want the lightest first pedal bike available. At 12.2 lb the GO 2 is the lightest 14-inch in our registry, and a first pedal bike is mostly a weight problem: it is about 35% of the median four-year-old, against the 53% a mass-market bike asks of a five-year-old.

You want real hand brakes from day one. Two independently operated mini V-brakes with short-reach levers, which is the setup every bike after this one will have.

What to do if your child is in the gap

Three honest options, in the order we would consider them.

Stay on a balance bike with more travel. The Strider 12 Sport publishes an 11 to 17 inch saddle range covering a 12 to 18 inch inseam, so it keeps fitting right through the hole in woom's range. If your child is at 15 inches and not yet pedaling, this is the cheapest and simplest answer, and the two brands are compared on Strider vs woom.

Buy a pedal bike that fits lower than the GO 2. Prevelo's Alpha One is a 14-inch pedal bike with a 14.75 inch minimum saddle height and a published 14 to 17.5 inch inseam range — it lands exactly in the gap, with independent dual hand brakes and no coaster. Prevelo sells direct rather than through Amazon, so we link it editorially and earn nothing from it.

Wait. An inseam grows roughly two to three inches a year at this age, so a child at 15 inches is a few months from the GO 2 rather than a year. If they are happy on the balance bike they already have, waiting costs nothing and buying a bike they cannot reach costs a season. The checks are on is my child's bike too big.

The weight step nobody warns you about

The GO 1 is 6.4 lb and the GO 2 is 12.2 lb. The bike nearly doubles in weight at precisely the moment the child starts doing something harder, and almost nobody mentions it. Measured against the CDC median three-year-old at 30.9 lb, the balance bike is 21% of its rider and the pedal bike is 39% — the equivalent of handing a 180 lb adult a 70 lb bicycle.

That is not an argument against the GO 2 — it is the lightest 14-inch we have found, and every alternative is worse on this measure. It is an argument for two things. Do not buy the pedal bike early: a child who is still growing into it carries the worst version of this ratio for the longest. And do not be surprised when the first week on pedals looks like a regression, because the machine under them has gone from something they can lift with one hand to something they cannot. Where the pounds come from, and why a cheap bike is so much worse, is set out on why kids bikes are so heavy.

What the GO 2 adds mechanically

It is easy to read these as the same bike with pedals bolted on. They are not. Going from the GO 1 to the GO 2 adds a chain, a freewheel, cranks, a bottom bracket, a front brake and a second lever — and all of those are things that can go out of adjustment in a garage over a winter.

Practically, that means the GO 2 wants a check the GO 1 never did: chain tension and lubrication, both brake cables, and whether the front lever is reachable rather than merely present. It also means the GO 2 can be set up badly in ways a balance bike cannot. A chain too tight makes the pedals feel heavy and convinces a three-year-old that pedaling is beyond them, which is the single most common false alarm we see — it is diagnosed on kids bike pedals hard to push. Five minutes of checks, twice a season, covers nearly all of it: kids bike maintenance basics.

What the two bikes share

Both are aluminum, both are built to woom's weight-first philosophy, and both use the same color-coded brake convention — the green lever is the rear brake, which is the one a child should learn first. Both publish a saddle range rather than only a rider height, which is more than most of this category manages and is what makes a tape-measure decision possible at all.

One difference worth flagging on the GO 2: woom lists two mini V-brakes, and the bike also ships with a rear coaster brake as a CPSC requirement for its size class. That means backpedaling stops the bike out of the box. A shop can remove the coaster if you want a pure freewheel, and there are reasons to want that — they are set out on coaster brakes vs hand brakes.

A naming note, because it causes real confusion

woom renamed its range. The balance bike most people still search for as the “woom 1” is now the woom GO 1, and the 14-inch sold for years as the “woom 2” is now the woom GO 2. Same bikes in the same slots, current products, and the specs on this page are the current published ones. If you are mapping the whole range against your child's measurements, every woom model and its published fit sits on the woom bike size chart.

What we would actually buy

For a child under a 14 inch inseam: the GO 1, and it is close to the only bike that fits at the bottom of that range. We took it apart figure by figure in our woom 1 (GO 1) review.

For a child at 16 inches or more who can already balance: the GO 2, which is the lightest 14-inch we have found and the better of woom's two bikes in absolute terms. The full teardown is in our woom 2 (GO 2) review.

For a child between the two: not a woom. Either a longer-travel balance bike or a lower-fitting pedal bike — and if you want one frame to cover both stages instead, the convertible route and what it costs in pounds is in our Strider 14x review. The whole 14-inch field is ranked on best 14 inch kids bikes.