The Tractive HPA for BMW R1100GS (from 1994) is a hydraulic preload adjuster designed to make spring preload changes quicker and more convenient. It uses a sealed, pressurised hydraulic system to transmit adjustment to the shock’s spring seat without needing tools at the shock body. This is a bolt-on adjuster assembly intended for riders who regularly change load or riding conditions.

Who is this for?

Riders who alternate between solo and two-up riding
Touring setups with luggage where preload needs to be changed often
Owners who want preload adjustment access without reaching the shock directly

Design & features

Hydraulic preload adjuster (HPA) for spring preload changes
Closed, pressurised, sealed hydraulic architecture to help maintain consistent operation and reduce aeration
Designed as a dedicated fitment for BMW R1100GS model years starting 1994

Tuning Controls

Spring preload adjustment via the hydraulic preload adjuster

Before You Install

Confirm your exact BMW R1100GS model and year (from 1994 onward) match this application
Check available mounting space and routing for the adjuster line and knob location before fitting
Install should be carried out to manufacturer instructions to avoid kinks or stress on the hydraulic line

Serviceability/Lifecycle

As a sealed, pressurised unit, it is designed to be durable in regular use when installed and routed correctly
Inspect periodically for damage to the line or adjuster body and address leaks immediately if found

Need Help Choosing?

If you are unsure of fitment for your R1100GS year or configuration, provide your bike details and the SKU so the correct variant can be confirmed

Teknik Motorsport Pty Ltd Warranty terms for TracTive products.

This TracTive product has been assembled with the utmost care and tested according to ISO9001:2015 Quality system. In the unlikely event that the product does not fulfill your expectations because of faulty materials or manufacturing errors, please contact us through your dealer.

Teknik Motorsport Pty Ltd warrants that if, within 24 months of the date of sale the product is found to be defective as a result of manufacturing errors or faulty components, the product will be repaired free of charge by us, or by a TracTive approved repairer at our discretion.

Warranty covers the direct service material cost, service labour cost ($80/hr AUD) and shipping costs of the service partner. Other costs will be regarded on a case by case basis by Teknik Motorsport and TracTive.

When a claim is made under the warranty, the following conditions have to be met:

You must have read the instructions carefully before mounting the product in the vehicle or adjusting the product.
The product has to be installed and adjusted as described in the instructions
The product must have been maintained and serviced in accordance with the recommendations in the manual. If not described in the manual, the recommended service intervals for regular street use: every 30.000 km or max 2 years, whichever is earlier.
Warranty shall apply only when TracTive original parts, procedures and tools have been used to service and/or repair, and if service and repair is performed by designated TracTive partners.
The product may not have been neglected, improperly used, altered or subjected to excessive loads. Excluded from warranty are normal wear, damage and rust.
A sales receipt or other proof of purchase originally eminating from Teknik Motorsport Pty Ltd. No warranty will be given on TracTive or Touratech products not purchased from or through Teknik Motorsport pty ltd.
Excluded from warranty are in particular products which are used in vehicles that are intended or suitable for taking part in sporting events, or have actually been used this way.
Recommended service interval for Motorsport applications: every season, or every 50 hours, every 10.000km or after any perceived loss in performance.