Grail:ON

Speed, terrain and total weight (rider + bike + luggage) all affect the total distance you can cover.

In general, you can expect a range of around 68.3 miles for a total weight of 210 pounds travelling at 12.4 mph over mixed terrain.

See the Bosch Range Calculator for more information.

We ship all Grail:ON bikes together with a Bosch Compact Charger. A full charge for the 500 Wh battery takes around 8 hours.

According to Bosch, a precise life span is impossible to forecast. The battery’s service life will depend mainly on the nature and duration of the stress to which it is subjected.

Maximizing the lifespan of your battery is simple.

Store the battery in a dry environment, away from direct sunlight at a room temperature of around 59° to 68° C.

If you don’t ride for a while, leave the battery charged between 30% and 60%.

And ideally, charge the battery at room temperature.

Mudguards: yes, you can mount them. The Grail:ON has mudguard mounts.

It only takes 5 minutes using our Perfect Positioning System (PPS) tool.

Just enter your key measurements, and we’ll tell you your frame size. The system uses data we’ve collected over many years of online sizing to give you results you can trust.

For complete peace of mind – if you order your bike and it doesn’t feel right, you can return it fuss-free for any reason within 30 days of receipt.

The Grail:ON has 2 standard bottle cage mounts.

Yes! The Grail:ON's all-terrain ability and speed make it a good choice for commuting, especially over longer distances or if you like to mix up the terrain on your commute to avoid busy roads.

Of course, if you have to leave your bike locked outside when you’re in the office, we suggest getting a robust, sturdy lock for maximum security.

Yes! The bike's drop-bar design and road-influenced geometry make it a good choice for road riding, especially on poor, broken road surfaces.

The Grail:ON has clearance for up to 50 mm tires.