Wholesale

14 models and 1,016 parts in stock today Ships from San Jose, California Off-road use only

After the sale

You bought it. Now keep it running.

Most of this category sells you a machine and disappears. Everything below is free, needs no account, and stays here whether or not you bought from us — because a bike you cannot service in three years was never a good deal.

Start with your machine

What wears out first

All parts →

Instant torque is hard on a chain, and a controller or motor is the upgrade most riders make first. These are the four systems that account for most of what owners replace, with what we hold in stock right now.

Short and silent. We film these as owners ask for them, so the questions we get most are the shortlist for what gets made next.

Reading for owners

All guides →

Shipping a battery

Ask a person

We do not run a forum. An unmoderated one on a site whose whole argument is that it tells you the truth would be a liability, and a dead one is worse than none. What we do run is an inbox that a person reads: send your model and what it is doing, and if the answer turns out to be useful to more than one owner it becomes a guide or a how-to film here.

Ask us a question Mon–Fri, 9:00–17:00 Pacific

Buying rather than owning? Start with the full range or compare any two machines.