
1) Bearing rein 2) Rein
Found on
https://www.crosswordclues.com/clue/checkrein

• (n.) A branch rein connecting the driving rein of one horse of a span or pair with the bit of the other horse. • (n.) A short rein looped over the check hook to prevent a horse from lowering his head; -- called also a bearing rein.
Found on
http://thinkexist.com/dictionary/meaning/checkrein/
Check'rein` noun 1. A short rein looped over the check hook to prevent a horse from lowering his head; -- called also a
bearing rein .
2. A branch rein connecting the driving rein of one horse of a span or pair with the bit of the other horse.
Found on
http://www.encyclo.co.uk/webster/C/59

a short rein passing from the bit to the saddle of a harness, to prevent the horse from lowering its head. Cf. overcheck (def. 2),See illus. under · a short rein joining the bit of one of a span of horses to the driving rein of the other.
Found on
https://www.infoplease.com/dictionary/checkrein
No exact match found.