D.R./OLYMPIA 177 cc cast iron cylinder - stable all-rounder with power reserves for everyday use, touring and long distances.

The big brother of the 135cc D.R. offers significantly more displacement and reserves for problem-free everyday use. Unlike the small 2-stroke supercharger, the 177 also makes noticeable gains at higher engine speeds - mainly thanks to the additional secondary exhaust ports. The relatively low compression ratio also ensures very good-natured temperature behavior and makes the Cylinder a reliable companion on long journeys.

• Solid cast iron cylinder with 7 transfer ports and additional secondary outlets.
• Reliable long-distance tourer thanks to moderate compression and good-natured thermals.
• Can be flexibly combined: from a plugged-in touring setup to a more powerful tuning setup.
• OLYMPIA 177 as an identical alternative to the D.R. in the event of supply bottlenecks.

The D.R. 177 can initially also be run on Engines with only two transfer ports "plugged" if the third transfer port in the Cylinder is closed via the Gasket - this already results in a significant increase in performance compared to the standard version. In conjunction with a POLINI Cylinder Head and transfer ports adapted to POLINI-177 dimensions, the setup becomes significantly more powerful, although not quite as indestructible as in the absolute touring trim. Longer primary ratios and exhaust systems such as SITO Plus or SIP T5 have proven their worth; for more rev-happy setups, the GRAND-SPORT Piston in combination with an MMW MALOSSI Cylinder Head is the ideal complement. The OLYMPIA 177 is identical in construction to the D.R. 177 and is a fully-fledged alternative if the D.R. is not available.