Yadea Y1S Series User Manual

PREMIUM E-MOBILITY
YD-EM279
68
6.1.3.3 Breakdown drawing of front fork
1. Front shock absorber
2. Steering column riser
3. Lock nut
4. Check washer
5. Upper fender
6. Upper steering bearing
7. Upper steel bowl
8. Lower steel bowl
9. Lower steering bearing
10. Lower fender
11. Steering column lower
yoke plate
12. Front shock absorber
lock nut
6.1.3.4 Detailed parameters
Item Standard value Wear/service limit
Steering system: Ball bearing
Front suspension:
Front fork stroke: 89mm
Free length of front fork: 385mm 380mm
Elastic coefficient: K1: 0.4kg·f/mm
Elastic coefficient: K2: 0.55kg·f/mm
Stroke: (K1): 46mm
Stroke: (K2): 43mm
Front fork oil capacity: 50ml
Front fork inner pipe deformation
limit:
0.2mm
Rear suspension:
Shock absorber stroke: 68mm
Free length of rear shock absorber: 390mm 385mm
Elastic coefficient: K1: 1.2kg·f/mm
Elastic coefficient: K2: 2.7kg·f/mm
Stroke: (K1): 46mm
Stroke: (K2): 22mm
Front fork oil capacity: 48ml
Suspension mode:
Front suspension: Retractable
Rear suspension: Integral rocker arm type
5
7
9
21
23 22
2
3
8
4
6
:

Yadea Y1S Series Specifications

General

Brand	Yadea
Model	Y1S Series
Category	Motorcycle
Language	English