After doing research of your own and taking a look at our review, you may have seen that there's a range of different children's bikes for balancing available. Here's the various types and what makes them different.
Wooden
The wooden options are usually best for being used indoors. This is because the weather and outdoor conditions can wear down the wooden materials over time. These ones may be best for 1 year old children who are still developing their balance and can have an easier time doing so indoors with your assistance if needed.
No Pedal Upgradeable Bike
The pedaless bikes that are available are usually made out of steel or alloy materials that are more durable and can withstand wear and tear from being used outdoors. There are also bikes with no pedals that come as a kit or let you upgrade the bike.
So, once your toddler has gained their confidence with using it as a bike for improving their balance, you can upgrade it by adding a chain and pedals. These upgrade features can be great for allowing the bike to grow with your child as they develop so that they can use it for years.