Incision 90mm Scale Shock Plastic Parts: Replacement FAQ
By Vanquish Products - Premium RC Crawler Kits & Accessories | Published: 2026-10-21
Category: Tips & Care
Answers to common questions about replacing plastic rod ends, shock cups, and pivot balls on Incision 90mm scale shocks, including when and how to swap them.
Quick Answer
Replace Incision 90mm scale shock plastic parts when you see wear, cracking, or binding. The keyed and non-keyed shock cups and pivot balls are inexpensive and easy to swap, so keeping spares on hand is smart.
Why Plastic Parts Wear Out
Plastic rod ends and shock cups take constant abuse during crawling. Dirt, grit, and repeated compression can cause them to crack or deform, which leads to binding or sloppy suspension feel. Checking them during regular maintenance helps catch problems early.
The Incision 90mm shock plastic parts are designed as consumable items. They are cheap and easy to replace, so you do not need to buy a whole new shock when a small part fails.
Keyed vs. Non-Keyed Shock Cups
The Incision 90mm plastic shock parts include both keyed and non-keyed shock cups. Keyed cups have a notch that aligns with the shock body, preventing rotation and keeping the preload adjuster in place. Non-keyed cups allow more freedom but may rotate during use.
Choose keyed cups if you want a secure, twist-free setup. Use non-keyed cups if you need a looser fit or are using aftermarket springs that do not require a fixed orientation.
When to Replace Instead of Repair
If a rod end is cracked or the ball socket is worn out, replacement is the only safe option. Trying to glue or patch plastic parts can fail under load and cause suspension damage.
Also, if the pivot ball is scratched or deformed, it can wear the rod end faster. Replacing both together ensures a smooth, tight fit.
Replacement FAQ
- How do I know when to replace the rod ends?
- Inspect for cracks, deformation, or excessive play. If the rod end can move side-to-side on the shock shaft or the ball socket is loose, it is time to replace. Check rod ends every few runs, especially after dusty or rocky trails.
- What tools do I need?
- You will need a small screwdriver or pick to pop the rod end off the pivot ball, and a 5mm wrench or nut driver to remove the shock shaft nut. Most replacements take under 10 minutes per shock.
- Can I mix keyed and non-keyed cups?
- Yes, you can mix them, but it is best to use matching cups on the same axle to keep preload settings consistent. Keyed cups are more secure; non-keyed cups offer more flexibility. If you use non-keyed cups, check them periodically to ensure they have not rotated and changed your preload.
- How often should I replace plastic shock parts?
- There is no set interval. Replace when you see visible wear or binding. Many crawlers replace them once or twice a season, depending on how often they run. Keep a spare set in your parts box so you are not stuck with a broken shock at the trail.
- Do these parts fit other shock brands?
- These are specifically designed for Incision 90mm scale shocks. They may fit other brands, but we cannot guarantee compatibility, so check dimensions before buying.
Product Facts
- Incision 90mm Scale Shock Plastic Parts: Replacement plastic rod ends with both keyed and non-keyed shock cups and shock mounting pivot balls. You get everything needed to rebuild the plastic end of your Incision 90mm shocks in one affordable kit, so you can refresh worn parts without buying new shocks.
Incision 90mm Scale Shock Plastic Parts
