Beta RR 250/300 2T 2013-2026: SP06, an 8 mm HDPE skid plate with linkage guard. It fits together with the PG07 and PG07 X pipe guards and does not fit the Beta Xtrainer.
Beta Xtrainer 250/300 2T 2015-2026: SP22 in 4 mm aluminium, which also protects the frame. It fits together with the PG12 pipe guard and does not fit the Beta RR.