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Maintaining Your Schlumpf Mountain Drive

 

Author: Bernard Fosnaugh

For velomobile riders utilizing the Schlumpf Mountain Drive system, proper maintenance is key to ensuring long-term performance. This innovative gear reduction system, which can transform an 85-tooth chainring into the equivalent of a 34-tooth setup at the push of a button, requires periodic attention to keep functioning smoothly.

The Schlumpf Mountain Drive's main maintenance requirement is relatively simple: adding lubricant every 1,600 miles or every one to two years of use. This internal gear system, which provides a 2.5x reduction ratio, is particularly valuable for velomobile riders tackling varied terrain, as it enables efficient climbing without sacrificing high-speed capability on flat ground.

 

To perform the maintenance, you'll need to:

Step 1: Position your velomobile on its side

Step 2: Locate the lubrication port (found near the Mountain Drive logo)

Step 3: Remove the appropriate screw

Step 4: Add approximately 2ml of specialized Schlumpf lubricant

Step 5: Replace the screw

 

While you have your velomobile on its side, it's worth taking the opportunity to inspect your tires for embedded debris or signs of wear. Removing any glass or other foreign objects can prevent future flats and extend tire life.

 

For Quatrevelo owners specifically, Bernard suggests considering replacing the maintenance panel screws with magnets for easier access during future maintenance sessions. This modification could streamline regular maintenance procedures, though it should be approached with appropriate consideration for the panel's security requirements.

Regular maintenance like this helps ensure your velomobile's drivetrain continues to perform optimally, providing the reliable and efficient transportation velomobiles are known for. The Schlumpf Mountain Drive, when properly maintained, offers velomobile riders an elegant solution for tackling both high-speed runs and challenging climbs with a single drivetrain setup.


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