Apico rear axle blocks are manufactured using a high-grade 6061-T6 Aluminium. CNC machined for a perfect fit every time and unrivalled precision when aligning the rear wheel. They all come with an anodised finish with anti-corrosion properties and Laser etched alignment marks to assist you when adjusting your chain. BETA ENDURO OEM 29-11866-100 LEFT OEM 29-11865-100 RIGHT OEM 031.33.003.42.50 LEFT OEM 031.33.002.42.50 RIGHT BETA MX 300RX 21-24 450RX 24- BETA ENDURO 125 RR 2T 18-24 200 RR 2T 19-24 250 RR 2T 13-24 300 RR 2T 13-24 250 X TRAINER 18-24 300 X TRAINER 15-24 250 RR 4T 05-06 350 RR 4T 11-24 390 RR 4T 15-24 400 RR 4T 05-14 430 RR 4T 15-24 450 RR 4T 05-15 480 RR 4T 15-24 498 RR 4T 12-14 500 RR 4T 17-19 520 RR 4T 10-11 525 RR 4T 05-09