Motorcycle and car loop from Birmingham
From Birmingham (England) 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.
The app calculates a loop from your location with the same method.
Reverse: the same route backwards. Curves swap sides, the radii stay.
- Kilometres
- 108.4km
- Curves
- 162
- Climbing
- 582m
- Median radius
- 83m
- Curves per 100 km
- 70.1
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
87 curves sit at junctions and are left out of these figures, for example turns with a small radius.
Curve character
Of 108.4 km, 25.8 km run through curves. The rest is straight or a junction turn.
- Tight
- 0.9 km, 0.8 %
- radius under 60 m
- Medium
- 7.6 km, 7.1 %
- 60 to 180 m
- Wide
- 17.3 km, 16.0 %
- 180 to 400 m
- Straights and junctions
- 82.1 km, 76.1 %
Key figures of the route
- Tightest curve
- At km 60.8: radius 30 m, right.
- Longest curve passage
- 5 curves over 1.6 km, from km 28.4 on B4114.
- Densest curve stretch
- 18 curves over 10 km, from km 56.0. The quieter kilometres come before.
- Longest climb
- 21.0 km with 141 m of ascent, from km 65.1 on Birmingham Road. Average gradient 0.7 %.
Elevation profile
From 55 m to 208 m. 582 m up, 577 m down.
Drag a finger or the cursor along the profile. The map shows the spot.
Turning points
- Low km 18.8: 75 m
- High km 47.8: 111 m
- Low km 60.0: 55 m
- High km 86.1: 199 m
- Low km 90.9: 135 m
- Low km 101.9: 98 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 |
|---|---|---|
| Kilometres | 108.4 | 136.7 |
| Curves | 79 | 60 |
| Curves per 100 km | 72.9 | 43.9 |
| Motorway | 0.0 km | 54.5 km |
1.7 times as many curves per 100 km as the standard loop.
Among the cities
Rank 35 of 50 cities in United Kingdom. Median 102.2 curves per 100 km, Birmingham sits at 82.0.
Similar cities
All lengths from Birmingham
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 | 55.8 km | 47 / 130 | 84.2 | 96 m | 445 m |
| 60 km | Reverse | 55.8 km | 49 / 128 | 87.7 | 94 m | 457 m |
| 120 km | Outbound | 108.4 km | 79 / 166 | 72.9 | 86 m | 573 m |
| 120 km | Reverse | 108.4 km | 76 / 162 | 70.1 | 83 m | 582 m |
| 200 km | Outbound | 194.3 km | 173 / 313 | 89.0 | 87 m | 1455 m |
| 200 km | Reverse | 194.3 km | 176 / 318 | 90.6 | 86 m | 1454 m |
Every curve with its position
79 curves away from junctions, with km position, tightest radius and road.
| km | Radius | Road |
|---|---|---|
| 2.7 | 62 m | B4124 |
| 4.1 | 74 m | B4124 |
| 5.5 | 67 m | Wellington Road |
| 5.6 | 67 m | Wellington Road |
| 6.3 | 42 m | Aldridge Road |
| 6.5 | 53 m | Aldridge Road |
| 8.6 | 104 m | Aldridge Road |
| 8.8 | 109 m | Aldridge Road |
| 14.2 | 199 m | Sutton Road |
| 19.9 | 120 m | B4151 |
| 21.9 | 194 m | B4151 |
| 27.9 | 146 m | Rosemary Hill Road |
| 29.9 | 177 m | Birmingham Road |
| 33.5 | 68 m | Birmingham Road |
| 37.8 | 134 m | Tamworth Road |
| 40.2 | 107 m | Lichfield Road |
| 40.7 | 87 m | Lichfield Road |
| 42.2 | 158 m | |
| 42.6 | 123 m | |
| 43.4 | 50 m | |
| 44.5 | 54 m | |
| 44.6 | 78 m | |
| 45.8 | 62 m | Church Road |
| 45.9 | 85 m | Church Road |
| 46.1 | 37 m | Church Road |
| 46.4 | 44 m | Church Road |
| 47.2 | 30 m | |
| 47.4 | 31 m | |
| 48.1 | 49 m | Brickhouse Lane |
| 48.6 | 36 m | Brickhouse Lane |
| 48.8 | 79 m | Brickhouse Lane |
| 48.8 | 60 m | Brickhouse Lane |
| 49.7 | 101 m | The Shrubbery |
| 50.1 | 172 m | The Shrubbery |
| 50.7 | 202 m | The Shrubbery |
| 51.0 | 227 m | The Shrubbery |
| 52.8 | 99 m | The Shrubbery |
| 54.1 | 123 m | The Shrubbery |
| 55.6 | 37 m | A513 |
| 56.2 | 105 m | Saxon Drive |
| 60.5 | 249 m | B5000 |
| 62.1 | 50 m | B5000 |
| 63.2 | 165 m | B5000 |
| 63.5 | 176 m | B5000 |
| 63.8 | 165 m | B5000 |
| 64.7 | 41 m | B5000 |
| 65.1 | 127 m | B5000 |
| 65.8 | 103 m | B5000 |
| 68.9 | 86 m | Atherstone Road |
| 70.3 | 70 m | Sheepy Road |
| 72.4 | 49 m | Quarry Lane |
| 72.6 | 68 m | Quarry Lane |
| 72.7 | 98 m | Quarry Lane |
| 72.8 | 91 m | Quarry Lane |
| 73.0 | 75 m | Quarry Lane |
| 73.9 | 64 m | Purley Chase Lane |
| 74.1 | 98 m | Purley Chase Lane |
| 74.2 | 83 m | Purley Chase Lane |
| 74.4 | 62 m | Purley Chase Lane |
| 78.3 | 132 m | B4114 |
| 78.5 | 170 m | B4114 |
| 79.0 | 66 m | B4114 |
| 79.6 | 80 m | B4114 |
| 82.2 | 127 m | B4114 |
| 83.5 | 45 m | B4114 |
| 84.2 | 88 m | B4114 |
| 85.5 | 93 m | B4114 |
| 85.8 | 36 m | B4114 |
| 87.1 | 145 m | B4114 |
| 88.3 | 239 m | B4114 |
| 89.4 | 82 m | B4114 |
| 97.6 | 206 m | B4114 |
| 100.0 | 136 m | Bromford Lane |
| 100.9 | 121 m | Bromford Lane |
| 105.3 | 145 m | Nechells Parkway |
| 106.6 | 31 m | Nechells Parkway |
| 106.9 | 38 m | James Watt Queensway |
| 107.0 | 83 m | James Watt Queensway |
| 107.6 | 51 m | A38 |
How it was measured
- Route: a round trip from Birmingham, 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 Birmingham?
There are three lengths: 60, 120, 200 km. The calculated routes measure 55.8, 108.4, 194.3 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 Birmingham have?
On 120 km we count 166 curves, 79 of them away from junctions. That is 72.9 free curves per 100 km.
How tight is the tightest curve?
On 120 km the tightest radius is 30 m, at km 47.2. The median radius of all curves is 86 m.
How much climbing does the route have?
On 120 km it is 573 m of ascent. The highest point is 209 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.
The round-trip generator is part of Premium. During the beta it is open to everyone.