GPM Racing Traxxas UDR Anti-Oil Leakage Shock Bladder for Traxxas 1/7 Unlimited Desert Racer-85076-4 (UDRDP/SC)

Precision shock bladder for UDR platforms

This anti-oil leakage bladder is a scale replacement for the shock absorber cover on the TRAXXAS UNLIMITED DESERT RACER and is intended to reduce oil migration within sealed shock bodies. By maintaining internal fluid volume, it helps preserve damping characteristics and lubrication during use and storage.

The bladder locates inside the shock cover and is compatible with the original shock cap and with common aftermarket caps. Recommended installation procedure for experienced technicians: disassemble the shock cap, remove the worn bladder, seat the new bladder within the cover ensuring uniform sealing around the shaft, then reassemble and verify sealing under static conditions before dynamic testing.

As a low-cost service item, replacing degraded bladders helps maintain rebound and compression stability by preventing progressive oil loss. The component is supplied as 8 pcs per pack and is intended for RC model maintenance and tuning support.

Compatible Models

• TRAXXAS-1/7 UNLIMITED DESERT RACER PRO-SCALE 4X4-85076-4

What tolerance should I expect when seating the bladder?

Ensure the bladder sits flush in the cover with no visible gaps around the shaft. Minor compression is normal; excessive distortion indicates incorrect seating or wrong part orientation.

Can I use different shock oils with this bladder installed?

Yes. The bladder is designed to work with a range of common shock fluids; choose oil viscosity based on your tuning goals, noting the bladder preserves fluid volume but does not alter valving.

Recommended maintenance interval?

Inspect bladders during routine shock rebuilds and replace if hardened, torn, or showing oil traces outside the sealed area. Replacement as part of an annual or high-usage service cycle is typical. Write Product Review Please sign in your account before you can write any review. Sign In Close

Made to order: GPM Racing parts are shipped to us from GPM's factory, so please allow around 14 days for dispatch.