Motorcycle Rear Suspension Lowering Kits A rear suspension lowering kit allows short riders to stand more firmly at traffic lights or when manoeuvring their motorbike. A big advantage in terms of safety and riding enjoyment! So it's well worth sacrificing a little cornering clearance. Important: To avoid your machine becoming too unmanoeuvrable when you fit a rear suspension lowering kit, it may be advisable to also lower the front, e.g. by raising the fork tubes in the triple trees.