MRP MXg SL Chainguide - 30-32t ISCG-05 High Pivot BlackMRP MXg SL Chainguide 30 32t ISCG 05 High Pivot Black. The MRP MXg only guide specifically designed for high pivot and similar suspension layouts with high chain growth. Silence and efficiency are the key benefits of this chainguide. For use with High Pivot and similar suspension layouts Features MRPs S5 roller with 14 mini teeth to keep it spinning smoothly in all conditions Large diameter roller reduces the articulation angle of the chain which