## **1** Speedometer extra lines on speedo whats the go? on Tue Nov 03, 2020 8:39 pm

#### daveyson

Life time member

Extra lines at 50 km/h, 150 km/h and 220 km/h whats that about?

On the Imperial speedo 40 mph, 80 mph and 135 mph, that's not a match.

The least dumb idea I'm thinking is in a race third gear would be ideal between 50 and 150, then go straight to fifth until max. revs at about 220 km/h. That's different to Imperial. Can anyone into racing shed light on this?

Not good at refining searches but googled a bit, and found a car speedo (BMW 318) with marks at 130 km/h and 65 km/h (that's half 130) and 40 mph is half of 80. No idea what this means.

40 mph=64 km/h, 80 mph=129 km/h 135 mph=217 km/h. The 135 marks are a bit off centre so maybe say 220 km/h, so at least that's about the same.

I'll guess the metric speedos are the same in all countries with metric, and same with imperial.

I've got a vague thought the speed limits in Germany were 50 max. in towns and 150 min. in the second lane on the autobahns, yep that's another crappy guess, doesn't meld with the car speedo.

Can anyone shed any light, or any more confusion?

On the Imperial speedo 40 mph, 80 mph and 135 mph, that's not a match.

The least dumb idea I'm thinking is in a race third gear would be ideal between 50 and 150, then go straight to fifth until max. revs at about 220 km/h. That's different to Imperial. Can anyone into racing shed light on this?

Not good at refining searches but googled a bit, and found a car speedo (BMW 318) with marks at 130 km/h and 65 km/h (that's half 130) and 40 mph is half of 80. No idea what this means.

40 mph=64 km/h, 80 mph=129 km/h 135 mph=217 km/h. The 135 marks are a bit off centre so maybe say 220 km/h, so at least that's about the same.

I'll guess the metric speedos are the same in all countries with metric, and same with imperial.

I've got a vague thought the speed limits in Germany were 50 max. in towns and 150 min. in the second lane on the autobahns, yep that's another crappy guess, doesn't meld with the car speedo.

Can anyone shed any light, or any more confusion?

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11/1985 bmw k100rt (late model) Vin. 0090567