BMW /5 Scrambler Conversion Cost Breakdown

I picked up a copy of that month's BMW Owners News and came across a full-page ad from Max BMW for their new /5 scrambler conversion kit. It was not a bad-looking bike for something built mostly with stock BMW parts.

Since they advertised having all the parts on their website, I decided to see what the real price tag might be. What followed was a reminder that custom builds often look simple in print and expensive in practice.

This article is not written from the perspective of a BMW dealer or professional builder. It is written from the viewpoint of someone with a stock /5 sitting in the garage and a calculator on the workbench.

BMW /5 scrambler conversion right side view from Max BMW advertisement
The Max BMW /5 scrambler conversion looked clean from the right side and used mostly stock BMW parts for its basic scrambler stance.

No Complete Parts List Included

After searching their site, it became apparent that there was no single parts list available for the project. They had all the pieces, but you needed to identify them and look them up one by one. Thanks...

That makes sense from a dealership perspective, but it also makes it difficult to estimate what the project would really cost once all the individual parts started piling up.

BMW /5 scrambler conversion left side showing ISDT-style exhaust routing and tank clearance
The left-side view shows the high-mounted exhaust routing that made the tank modification necessary.

The Parts List I Came Up With

I am not a BMW expert by a long shot, but with my own stock /5 sitting in front of me, this is the list I came up with:

  • Two-into-one exhaust system
  • Police solo seat
  • Off-road tires
  • Off-road handlebars
  • Upgraded shocks
  • Skid plate for the oil pan
  • Extended front fender mounts
  • Aftermarket handgrips
  • Aftermarket brake and clutch levers

The Tank Is Not a Simple Bolt-On

The only thing that keeps this from being a total bolt-on upgrade is the gas tank. The tank was modified on both sides to allow clearance for the left-side header pipe.

Modified BMW /5 fuel tank cutout for scrambler exhaust header clearance
The modified gas tank needed clearance cutouts on both sides so the left-side header pipe could pass by the tank.

The Real Cost of the Build

Speaking of exhaust, the list price for the ISDT-style system was $3,837.30. A quick search of Craigslist found plenty of running /5 motorcycles for less than the price of that exhaust system alone.

Of course, you can offset some cost by selling your turn signals and side covers on eBay. The rest of the parts probably total somewhere between $1,500 and $2,500.

Add in the bodywork needed on the tank for exhaust clearance, along with repainting, and this conversion starts to cost serious money. If you do not already have a donor /5, the purchase price of a good used /5 along with these parts will easily push the total past $10,000.

For more hands-on motorcycle projects and old-bike garage notes, visit the Vintage Tech archive.

My Final Verdict

Now you have a really expensive 40-year-old dirt bike with bad brakes.

I think I will leave mine stock.

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