Tamiya 51637 TRF420 Suspension Shaft Set 3x25/22mm (2 Pieces)  [51637]

Tamiya 51637 - TRF420 3x25/22mm Suspension Shaft (2 Pcs.) SP-1637
Price:
£4.20
Brand:
Tamiya
Model:
51637
GTIN:
4950344516377
Condition:
Brand New
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Control and Consistency for the TRF420

The Tamiya 51637 TRF420 suspension shafts are aimed at pilots seeking steadier handling from the TRF420 race chassis. They are a thicker, more robust replacement for older shaft designs.

Available Sizes and Construction

These shafts come in 3x25mm and 3x22mm variants and are produced from stainless steel to resist wear. The upgrade to a 3mm diameter offers improved stiffness over the previous 2.6mm options.

Updated Locking Groove

The continuous groove on these shafts replaces the earlier flat section and provides a cleaner, more reliable interface for grub screw fastening during assembly or mid event servicing.

Compatible with TRF420 D Parts

They are engineered to work with TRF420 D Parts (Suspension Arms), Item 51639, making them a simple swap for TRF420 owners looking to refresh worn pins.

Can these shafts be used on vintage TRF cars?

If the older car shares TRF420 D Part dimensions they will fit, but verify arm bore diameter and overall length before fitting to older frames.

How do I check for wear?

Inspect the groove and shaft ends for nicks or flattening and check for play in the suspension arm pivot. Replace if you see significant scoring that could affect movement.

Will these improve lap times?

They improve mechanical consistency by reducing unwanted flex, which can help lap time indirectly when combined with proper setup and tyres.

What maintenance is recommended?

Clean shafts after dusty runs, check grub screws for tightness, and replace if deep marks appear. Light lubrication during storage helps prevent surface corrosion.

Are spares available?

Spare shafts and matching grub screws are commonly available from hobby suppliers; keep an extra pair handy for quick trackside swaps.

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