15. REAR WHEEL/REAR BRAKE/REAR SHOCK ABSORBER VITALITY 50 SERVICE INFORMATION SPECIFICATIONS Item Standard (mm) Service Limit (mm) Rear wheel rim runout 2.0 Rear brake drum I.D. 110 111 Rear brake lining thickness 6.4 2.0 Rear shock absorber spring free length 209 TORQUE VALUES Rear axle nut 11.013.0kgf-m Rear shock absorber upper mount bolt 3.54.5kg-m Rear shock absorber lower mount bolt 2.43.0kg-m TROUBLESHOOTING Rear wheel wobbling · Bent rim · Faulty tire · Axle not tightened properly Soft rear shock absorber · Weak shock absorber spring Poor brake performance · Brake not adjusted properly · Contaminated brake linings · Worn brake linings · Worn brake shoes at cam contacting area · Worn brake cam · Improper engagement between brake arm and wear indicator plate 15-2