
- 10 -
IMPORTANT Make sure your handle bar grips are always intact, in good condition and
on the bike. Uncovered handlebar tubes can be very dangerous in case of a collision.
14 Brakes
14.1 Front and Rear: V brake
14.2 T e brakes on your Wisper bike are fitted wit cut outs w ic are required by
law. T is means t at w en you pull on eit er t e back or front brake lever t e
motor immediately stops working.
14.3 Full details of ow to adjust and maintain your brakes:
Once a mont , inspect brake pads for wear. If t e grooves in t e braking
surface are less t an 2 mm deep, replace t e pads.
V brake:
14.3.1. Use 5mm Allen key to loosen bolt A,
t en take t e cable out. Use 5mm Allen
key to loosen bolts C (rig t & left), t en
take t e spacers and was ers out
14.3.2. Install new brake pads, t en wit bot
pads pressed against t e w eel rim,
ensure t at distance B (in t e diagram)
does not exceed 65mm. To decrease
distance B, exc ange wide & narrow
spacers on eac brake pad. Before finally
tig tening brake pads, make sure t ey are aligned correctly on t e rim,
and t ere is a gap of 1mm between t e top of t e rim and t e top of t e
pad. Hold eac pad against t e rim (one at a time) & tig ten bolt C.
Finally tig ten to 6-8N.M
14.3.3. Insert cable into bolt A, slot cable guide pipe into older and fit
protector over t e guide pipe end. Set cable in bolt A so t at combined
pad/rim clearance (t e gaps from left pad to left rim surface and from
rig t pad to rig t rim surface) is 2mm, t en tig ten “A” bolt. Finally
tig ten to 6-8N.M.
Balance brake arms by turning screw D. Depress brake lever a few times
w ile c ecking to see t at tension is equal for bot arms. Pad/rim
contact s ould occur at t e same time eac side. Clearance s ould be
1mm eac side. Do not set tensions too ig .
14.3.4. Re adjusts pads so t ey are properly aligned (see step 2), as tension
adjustment will probably ave altered t e original pad alignment.
14.3.5. Installing brake pads.
14.3.5.1. Position eac pad on an opposite side of t e older so t at
two breaking surfaces are facing eac ot er.