As a direct replacement hop-up for Yokomo drift cars, this aluminium front steering block delivers a firmer option compared with resin steering assemblies while maintaining compatibility with a range of RD/SD/MD chassis. The design separates axle, steering block, and upper holder so shim stacks can be changed to adjust trail and kingpin angle without replacing the complete unit.
With axle and holders machined from aluminium the assembly resists flex more than standard resin parts, yielding sharper steering input and steadier front-tire trace during drift lines. These benefits are most apparent on tile and coloured concrete where alignment demands are higher.
Fitting the unit replaces the stock components and uses the supplied shims for incremental setup changes; this part is aimed at tuners wanting more precise geometry control rather than a wholesale chassis conversion.
If you need a firmer front end and finer alignment control for drift-focused surfaces, the RD-415SAR gives adjustable geometry options while keeping compatibility across many RD/SD/MD models.
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