Male hand of bicycle mechanic tightening wheel on bicycle fork with disc brakes using lever on thru-axle bolt

male hand tightening wheel bicycle fork lever thruaxle bolt closeup wheel attachment system control cycling road bike bicycle maintenance torque torque wrench mounting hub rigid bike safety disc brake spokes maintenance assembly hobby indoor inside home instructional safety brake unrecognizable cyclist biker travel bikepacker touring new bike day diy tutorial repair bike repair hand work servicing service recreation advertising marketing