The term 'A BIT PULLS' is composed of two words, 'REIN' and 'TOWS'. The word 'REIN' is a noun which refers to a long, thin strap of leather, webbing, or rope used to control a horse or other animal. The word 'TOWS' is a verb which means to pull or draw something along behind one, especially a vehicle or boat. Therefore, the phrase 'A BIT PULLS' can be interpreted as a reference to the use of reins to control a horse while it is pulling a vehicle or boat.