It is a front chassis brace while increasing significantly pitching stiffness of the chassis front part. leaving flexibility in the roll direction. By changing the balance of chassis rigidity. while raising the steering response of the initial cornering. pull out a sense of stability in a flexible role. Appearance of the chassis changes to significantly preferred. bright blue anodized as well as dress-up items of course. Please use the one that comes with the kit screw for mounting. Clearance of the steering crank is slightly larger. but there is no hindrance to travel. Please try to eliminate so if you can in between about 0.5mm thick spacer shims of 4.0mm the (ZC-S40 �� 380) Those who rattling worried about. The rigidity of the mounting post is enhanced by a combination aluminum steering bell crank post (sold separately) and optional (SD-202P �� 550). steering response even further improvement can be expected.