The eastonrsquos ea70 mtb stem is a rugged all purpose mountain bike stem thatrsquos ready to go anywhere the easton ea70 has been 3d forged from aluminium with a shot peen finish for maximum strength and minimum weight easton39s ea70 4 bolt stem is race ready with eastonrsquos proprietary ea70 alloy top lock technology dst and race proven taperwall technology this mountain bike stem is available in six lengths from 70 130mm with 6 degree rise or there is a 17 degree option in fo