This is the cable which connects to the gearbox to initiate forward motion. For Honda Lawn Mowers with the following codes.
Forward Drive Clutch Cable For Honda HR1950 HRD535 TYPE Q REAR ROLLER MOWER
MCALLISTER MAC MLM 300sp46 500 MLMP300SP46 MLMP500SP self drive clutch cable
Drive Clutch Cable for MOUNTFIELD Lawnmower SP180 SP183 SP184 SP185 381030082/0
Self Drive Clutch Cable Fits MOUNTFIELD SP474,SP534ES,SP536ES. 381000659/0
Replacement FOR Honda HR1950, HR2160 HRD535 Drive Clutch Cable 54510-VB5-800
For Honda HRD535K HRD536K HRH536K 06541-VB5-A01 Drive Clutch Cable