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Step 6: Brake Adjustments
The brakes on your bicycle should be correctly adjusted from the factory.
However, it's important to check the function of your brakes before your first ride.
The following instructions are not exhaustive. We strongly suggest you take
your bike to your place of purchase, professional bike shop, or certified e-bike
mechanic for assembly, adjustment, and maintenance.
With the wheels installed, check that both brakes are functioning properly. First
lift the bike and spin the front then the rear wheel to insure they turn freely and
the brake pads are not contacting the brake rotor. If there is some rubbing, you
can adjust the caliper to be inline with the rotor with the following steps:
•
First, loosen the caliper fixing bolts (do not remove). This will allow the caliper
body to move freely. Now squeezed the brake lever. This will align the caliper
to the rotor via the brake pads. With the brake lever still squeezed, snug the
caliper fixing bolts back down. Spin the wheel to confirm there is no rubbing.
•
Tighten the caliper fixing bolts to 6-8Nm.
•
Repeat these steps with the other wheel/brake.
•
Next, squeeze the lever to insure both feel firm and are stopping before
they hit the handlebar. If the levers contact the bar or you see fluid leaking,
contact Retrospec or you dealer for additional assistance.
The hydraulic brakes are self-adjusting, but will require annual bleeding of the
fluid. Retrospec highly recommends this be done by an experience authorized
dealer.
B. Checking Brake Pad Wear, Pad Replacement
Pads that are 1mm thick (or less) need immediate replacement (Fig. 15).
To install new pads, remove the brake caliper from the fork or frame by
unscrewing hex bolts D (Fig. 16). Unscrew (left/counterclockwise), the smaller
hex bolt inside allen bolt B (Fig.17). Lift and pull inner pad downward, using the
protruding tab. Slide thin slot screwdriver under the outer pad and lift up. Hold
the screwdriver in position and remove the pad with a pair of long-nosed pliers.
Fig. 15
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Fig. 16
Fig. 17
Remove the springs from the worn-out pads and fit them onto the new pads.
Replace the new pads, keeping them slightly inclined into the seat of the caliper.
Check that the spring hooks correctly onto the small piston. (When pulling
downwards the pads should not come out). Refit the caliper to the fork (or frame
for rear brake). Turn adjuster screw C (Fig.18) until the pads are centered on the
disc and the wheel spins freely. Again, there may be some noise from the brake
until it "bed" in. You may have to adjust the cable tension and lever adjustment-
follow previous Step A. Brake Lever and its Brake Pad Travel Adjustment.
We strongly advise you have your brakes periodically checked and maintained by
your dealer or a professional bicycle mechanic.
Step 7: Derailleur Gears Maintenance and Adjustment
The gears/derailleur(s) on your bicycle should be correctly adjusted from the
factory. However, as cables do seat and stretch, it's important to check the
function of your shifting after your first ride. Note that it's not unusual for your
shifting system to need some adjustment after being used a few times.
We strongly recommend you have your e-bike serviced by your dealer or
professional bike shop/mechanic.
To ensure long life and efficiency for your drivetrain system, it must be kept clean
and properly lubricated. Before attempting any adjustments, make sure you
understand the drivetrain components functions and feel confident to attempt
such maintenance.
•
Left shifter controls the front derailleur and chain wheel(s);
Right shifter controls the rear derailleur and rear cogset.
•
The largest/larger rear sprockets on the cogset are the low [speed] gears
used for hill climbing and low speed technical riding; the smallest/smaller rear
cogs are for cruising and high(er) speed and downhill riding.
Fig. 18
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