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Motorcycle and car loop from Bonn

From Bonn (Rhineland) we calculate the twistiest round trip in three lengths, for motorcycle and car. It runs over paved country roads without motorways. Every figure comes from the calculated route.

Ride this loop in the app See map and curves

The app calculates a loop from your location with the same method.

Reverse: the same route backwards. Curves swap sides, the radii stay.

Kilometres
117.4km
Curves
186
Climbing
994m
Median radius
90m
Curves per 100 km
107.3
Map of the 117 km round trip from Bonn Bonn Overath Rösrath Troisdorf Sankt Augustin Siegburg Neunkirchen-Seelscheid Lohmar Stieldorf Much Ahe Forsbach Vinxel Dondorf Start and finish

Tap a dot on the map for its radius and road.

Radius explorer

Move the cursor over a bar. The curves of that class light up on the map, with their km position.

Tightest radius per curve

57 curves sit at junctions and are left out of these figures, for example turns with a small radius.

Curve character

Of 117.4 km, 33.2 km run through curves. The rest is straight or a junction turn.

Tight
0.2 km, 0.2 %
radius under 60 m
Medium
12.9 km, 11.1 %
60 to 180 m
Wide
20.1 km, 17.1 %
180 to 400 m
Straights and junctions
83.8 km, 71.6 %

Key figures of the route

Tightest curve
At km 0.5 on Poppelsdorfer Allee: radius 26 m, right.
Longest curve passage
8 curves over 3.3 km, from km 40.5 on B 478.
Densest curve stretch
21 curves over 10 km, from km 65.5. The quieter kilometres come before.
Longest climb
16.7 km with 85 m of ascent, from km 33.7 on B 478. Average gradient 0.5 %.

Elevation profile

From 55 m to 281 m. 994 m up, 988 m down.

Drag a finger or the cursor along the profile. The map shows the spot.

Low: km 18.5: 150 m High: km 50.4: 158 m Low: km 53.7: 132 m High: km 62.1: 249 m Low: km 63.4: 203 m High: km 66.5: 281 m

Turning points

  • Low km 18.5: 150 m
  • High km 50.4: 158 m
  • Low km 53.7: 132 m
  • High km 62.1: 249 m
  • Low km 63.4: 203 m
  • High km 66.5: 281 m

Compared with the standard loop

The reference is the fastest round trip with the same start, heading and circle radius.

Compared with the standard loop Twisty loop Standard loop
Kilometres117.4129.5
Curves12388
Curves per 100 km104.767.9
Motorway0.0 km63.0 km

1.5 times as many curves per 100 km as the standard loop.

Among the cities

Rank 79 of 152 cities in Germany. Median 104.1 curves per 100 km, Bonn sits at 101.3.

Similar cities

All lengths from Bonn

Every length in both directions. The curve column shows the count away from junctions first, then the total.

Length Direction Kilometres Curves Curves per 100 km Median radius Climbing
60 km Outbound 60.2 km 54 / 105 89.6 82 m 484 m
60 km Reverse 60.2 km 54 / 99 89.6 80 m 494 m
120 km Outbound 117.4 km 123 / 180 104.7 91 m 969 m
120 km Reverse 117.4 km 126 / 186 107.3 90 m 994 m
200 km Outbound 207.2 km 227 / 323 109.6 90 m 1817 m
200 km Reverse 207.2 km 235 / 318 113.4 102 m 1813 m

Every curve with its position

123 curves away from junctions, with km position, tightest radius and road.

km Radius Road
0.272 mThomas-Mann-Straße
0.390 mB 56
10.582 mSiegstraße
10.684 mSiegstraße
10.854 mSiegstraße
10.954 mSiegstraße
12.046 mL 143
12.5194 mL 143
14.856 mRömerstraße
17.0121 mRömerstraße
17.673 mRömerstraße
19.882 mHeidegraben
20.749 mL 84
28.870 mL 284
29.193 mL 284
31.0134 mL 284
31.2123 mL 284
36.593 mL 136
37.0105 mL 136
37.5126 mL 136
38.080 mL 136
38.291 mL 136
38.5157 mL 136
38.7100 mL 136
39.074 mL 136
40.3284 mL 136
42.0134 mHauptstraße
42.429 mMucher Straße
42.8184 mMucher Straße
43.1157 mMucher Straße
43.944 mMucher Straße
44.138 mMucher Straße
44.775 mMucher Straße
44.848 mMucher Straße
45.3155 mL 312
46.171 mL 312
46.580 mL 312
46.8108 mL 312
47.394 mL 312
48.2137 mL 312
48.4134 mL 312
48.8138 mL 312
50.0130 mL 312
50.5118 mL 312
50.8142 mL 312
52.8178 mL 312
53.766 mL 312
54.167 mL 312
54.379 mL 312
54.670 mL 312
54.759 mL 312
54.989 mL 312
55.0136 mL 312
59.3119 mL 224
59.9115 mL 224
60.1122 mL 224
61.6220 mL 224
62.283 mL 224
62.9100 mL 224
63.1158 mL 224
64.391 mB 478
64.673 mB 478
65.296 mB 478
65.543 mB 478
66.0115 mB 478
67.571 mZur Bröltalarena
68.081 mZur Bröltalarena
68.891 mB 478
69.073 mB 478
69.786 mB 478
71.580 mB 478
72.4132 mB 478
72.7143 mB 478
73.0139 mB 478
74.196 mB 478
74.4213 mB 478
74.689 mB 478
74.979 mB 478
75.2117 mB 478
75.5157 mB 478
75.9120 mB 478
76.7118 mB 478
77.4249 mB 478
78.099 mB 478
78.9117 mB 478
79.2103 mB 478
79.5160 mB 478
80.772 mB 478
82.879 mB 478
83.091 mB 478
83.3269 mB 478
86.654 mL 331
86.975 mL 331
87.189 mL 331
87.495 mL 331
88.360 mL 331
89.332 mL 331
91.2180 mL 331
91.5185 mL 331
91.9134 mL 331
94.181 mL 331
94.357 mSiegburger Straße
95.2134 mDollendorfer Straße
95.554 mDollendorfer Straße
95.754 mDollendorfer Straße
96.275 mDollendorfer Straße
96.594 mDollendorfer Straße
98.237 mIm Harperoth
98.337 mIm Harperoth
99.3274 mDollendorfer Straße
100.776 mL 83
100.888 mL 83
104.084 mL 83
104.0101 mL 83
105.4108 mL 83
106.255 mL 83
106.540 mL 83
106.640 mL 83
108.5161 mL 83
114.668 mBornheimer Straße
115.4105 mGuido-Westerwelle-Brücke
116.826 mPoppelsdorfer Allee
117.241 mThomas-Mann-Straße

How it was measured

  • Route: a round trip from Bonn, calculated on road data from 3 Jul 2026. Of several possible loops of the same length we show the one with the most rideable curves. Motorways are excluded.
  • Vehicle: The route is calculated for a motorcycle and runs on paved roads. A car can drive it too. On narrow stretches a car route can differ in detail.
  • Curve: a turn in one direction of at least 35 degrees. The DriveBattle app counts the same way.
  • Radius: the tightest curve radius inside the curve. Turns at junctions are flagged and do not count towards radius, tightest curve or passage.
  • Elevation: ground height along the route, smoothed over about 450 m. A climb counts from a 5 m height difference.
  • Calculated on 5 Oct 2026. The figures describe this route. The state of the road on the day you ride can differ.

Calculated on 5 Oct 2026

Questions about the round trip

How long is the round trip from Bonn?

There are three lengths: 60, 120, 200 km. The calculated routes measure 60.2, 117.4, 207.2 km.

Can I drive the round trip by car?

Yes. The route runs over paved country roads without motorways and can be driven by car and motorcycle. It is calculated for a motorcycle, so on very narrow stretches a car route can differ in detail.

How many curves does the round trip from Bonn have?

On 120 km we count 180 curves, 123 of them away from junctions. That is 104.7 free curves per 100 km.

How tight is the tightest curve?

On 120 km the tightest radius is 26 m, at km 116.8. The median radius of all curves is 91 m.

How much climbing does the route have?

On 120 km it is 969 m of ascent. The highest point is 281 m, the lowest 55 m.

Can I ride this round trip with the app?

Yes. The round-trip generator in the DriveBattle app calculates loops from your location with the same method.

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The round-trip generator is part of Premium. During the beta it is open to everyone.

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