The Kyosho W5313GM 13mm Big Bore Shock improves the Ultima RB7.5's suspension response and overall composure. The increased bore size gives better damping authority, reducing pogo and helping the car stay planted over uneven terrain. Precision machining and sturdy alloy construction deliver reliable service life for regular running and tuning sessions.
Suitable for racers who want a straightforward upgrade to improve cornering stability and straight-line confidence without extensive chassis changes.
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