16
YOU-RIDE BARCELONA
7. Tech
7.1 Wheels
Please do not change the wheel by yourself. It needs proper tools and skillful persons.
WARNING: Failure to properly adjust the wheel can cause the wheel to wobble or
disengage, which could cause you to loose control and fall, resulting in serious
injury or death.
7.2 Seat post Quick Release
Some E-bike are equipped with a quick-release seat post binder. The seat post quick-
release binder. While a quick release looks like a long bolt with a lever on one end and
a nut on the other, the quick release uses a cam action to firmly clamp the seat post.
WARNING: Riding with an improperly tightened seat post can allow the saddle to
turn or move and cause you to lose control and fall.
7.3 Brakes
WARNING:
1. Riding with improperly adjusted brakes or worn brake pads is dangerous and can
result in serious injury or death.
2. Applying brakes too hard or too suddenly can lock up a wheel, which could cause
you to lose control and fall. Sudden or excessive application of the front brake may
pitch the rider over the handlebars, which may result in serious injury or death.
3. Some bicycle brakes, such as disc brakes and linear-pull brakes, are extremely
powerful. Take extra care in becoming familiar with these brakes and exercise
particular care when using them.
4. Disc brakes can get extremely hot with extended use. Be careful not to touch a disc
brake until it has had plenty of time to cool.
7.4 Shifting gears
Your multi-speed bicycle will have a derailleur drive train (see 2. below), an
internal gear hub drive train (see 3. below) or, in some special cases, a combination
of the two.
1. HOW A DERAILLEUR DRIVE TRAIN WORKS
If your bicycle has a derailleur drive train, the gear-changing mechanism will have:
• a rear cassette or freewheel sprocket cluster
• a rear derailleur
• usually a front derailleur
• one or two shifters
