Therefore, {HEAD ~ the present invention} has effects that it reduces a feeling of fatigue, increases {TAIL ~ the quantity} of motion, and allows a user to enjoy riding a bicycle with more interest 
increases
Therefore , { HEAD ~ the present invention } has effects that it reduces a feeling of fatigue , increases { TAIL ~ the quantity } of motion , and allows a user to enjoy riding a bicycle with more interest
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH