Motorcycle and car loop from Machynlleth

From Machynlleth (Wales) 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.

Kilometres: 116.7km
Curves: 255
Climbing: 1850m
Median radius: 65m
Curves per 100 km: 178.2

Map of the 117 km round trip from Machynlleth

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

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

Curve character

Of 116.7 km, 45.7 km run through curves. The rest is straight or a junction turn.

Tight: 0.7 km, 0.6 %; radius under 60 m
Medium: 15.9 km, 13.7 %; 60 to 180 m
Wide: 29.1 km, 25.1 %; 180 to 400 m
Straights and junctions: 70.5 km, 60.7 %

Key figures of the route

Tightest curve: At km 98.5: radius 19 m, right.
Longest curve passage: 13 curves over 2.6 km, from km 54.6.
Densest curve stretch: 33 curves over 10 km, from km 71.5. The quieter kilometres come before.
First free curve: At km 1.2. Before that, no curve away from junctions lies on the route.
Longest climb: 15.9 km with 490 m of ascent, from km 0.5 on Heol yr Efail. Average gradient 3.1 %.

Elevation profile

From 9 m to 542 m. 1850 m up, 1851 m down.

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

Turning points

Low km 24.1: 290 m
Low km 29.7: 294 m
Low km 44.7: 331 m
Low km 87.2: 84 m
High km 89.3: 197 m
Low km 114.5: 71 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	116.7	98.7
Curves	208	121
Curves per 100 km	178.2	122.6
Motorway	0.0 km	0.0 km

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

Among the cities

Rank 10 of 50 cities in United Kingdom. Median 102.2 curves per 100 km, Machynlleth sits at 172.3.

Similar cities

All lengths from Machynlleth

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	54.9 km	93 / 133	169.3	67 m	1049 m
60 km	Reverse	54.9 km	95 / 134	172.9	66 m	1042 m
120 km	Outbound	116.7 km	208 / 255	178.2	65 m	1850 m
120 km	Reverse	116.7 km	206 / 254	176.5	69 m	1874 m
200 km	Outbound	220.2 km	373 / 430	169.4	69 m	3284 m
200 km	Reverse	220.2 km	374 / 433	169.9	75 m	3266 m

Every curve with its position

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

km	Radius	Road
1.2	99 m	Heol yr Efail
1.9	62 m	Heol yr Efail
2.2	41 m	Heol yr Efail
2.4	39 m	Heol yr Efail
3.0	69 m	Heol yr Efail
6.2	99 m	Heol yr Efail
6.9	79 m	Heol yr Efail
7.1	79 m
8.0	114 m
9.0	113 m
9.2	76 m
10.4	144 m
14.1	131 m
14.5	114 m
14.6	71 m
15.4	117 m
15.6	57 m
15.9	74 m
16.2	74 m
16.5	99 m
16.9	103 m
17.5	126 m
18.3	80 m
18.5	184 m
19.0	145 m
19.7	83 m
22.8	129 m	B4518
23.4	129 m	B4518
23.7	156 m	B4518
23.8	141 m	B4518
24.0	108 m	B4518
24.7	129 m	B4518
25.9	128 m	B4518
27.4	102 m	B4518
28.1	108 m	B4518
29.5	112 m	B4518
29.7	124 m	B4518
30.1	127 m	B4518
30.3	109 m	B4518
30.7	82 m	B4518
31.7	141 m	B4518
31.9	132 m	B4518
32.2	115 m	B4518
33.3	85 m	B4518
34.1	125 m	B4518
34.4	125 m	B4518
35.8	83 m	Penygreen Road
36.5	120 m	Penygreen Road
37.7	48 m	Penygreen Road
37.8	70 m	Penygreen Road
40.4	53 m	Penygreen Road
40.4	53 m	Penygreen Road
40.7	42 m	Penygreen Road
40.8	44 m	Penygreen Road
42.1	27 m	Penygreen Road
42.3	27 m	Penygreen Road
42.3	51 m	Penygreen Road
44.2	35 m
44.4	48 m
44.5	48 m
44.6	59 m
44.8	74 m
45.6	54 m
45.9	27 m
50.2	148 m	A44
51.6	92 m	A44
52.4	176 m	A44
53.1	103 m	A44
53.6	81 m
54.6	69 m
54.9	90 m
55.1	74 m
55.6	36 m
55.6	48 m
55.8	70 m
55.9	35 m
56.2	35 m
56.3	38 m
56.4	27 m
56.6	39 m
56.9	32 m
57.1	32 m
57.8	71 m
59.0	35 m
59.5	43 m	Pont Cefy-brwyn
60.0	124 m	Pont Cefy-brwyn
60.6	62 m	Pont Cefy-brwyn
60.7	62 m	Pont Cefy-brwyn
62.9	148 m	A44
64.4	92 m	A44
65.1	176 m	A44
65.8	103 m	A44
66.2	99 m	A44
66.5	116 m	A44
67.7	79 m	A44
68.2	66 m	A44
68.4	140 m	A44
68.8	62 m	A44
69.7	110 m	A44
71.5	62 m	B4343
71.6	55 m	B4343
72.3	130 m	B4343
73.0	69 m	B4343
73.2	113 m	B4343
73.6	34 m	B4343
73.7	40 m	B4343
73.9	27 m	A4120
74.1	47 m	A4120
74.2	47 m	A4120
74.6	37 m	A4120
74.9	37 m	A4120
75.4	95 m
75.8	116 m
76.6	52 m
77.1	54 m
77.2	54 m
77.7	24 m
77.8	50 m
78.0	50 m
78.6	46 m
78.7	46 m
78.8	60 m
78.9	74 m
79.2	30 m
79.4	37 m
79.5	37 m
79.9	67 m
80.3	88 m
80.7	32 m
80.8	32 m
80.9	52 m
81.3	55 m
81.7	59 m
82.1	57 m
82.2	57 m
82.7	75 m
87.0	38 m
87.2	91 m
87.6	86 m
88.0	120 m
88.5	104 m
88.7	83 m
89.8	49 m
89.8	58 m
89.9	58 m
90.3	56 m
91.0	60 m
91.2	83 m
91.5	91 m
91.8	48 m
92.0	48 m
92.2	58 m
92.2	78 m
92.4	88 m
92.8	95 m
93.3	180 m
94.5	139 m
95.0	53 m
98.4	32 m
98.5	32 m
98.5	19 m
98.7	19 m
98.8	60 m
99.2	59 m
99.3	67 m
99.8	44 m
99.9	52 m
100.1	29 m
100.1	29 m
100.3	75 m
100.4	57 m
100.6	22 m
100.6	34 m
100.9	30 m
101.0	27 m
101.1	27 m
101.2	50 m
101.3	68 m
101.7	58 m
101.7	58 m
101.9	63 m
102.0	63 m
103.3	77 m	A487
103.5	77 m	A487
103.9	159 m	A487
104.8	83 m	A487
104.9	73 m	A487
105.1	217 m	A487
105.4	179 m	A487
105.7	49 m	A487
107.3	231 m	A487
109.3	58 m
109.4	64 m
110.5	71 m
111.5	56 m
112.5	27 m
113.2	98 m
113.6	57 m
114.3	59 m
114.5	58 m
114.7	51 m
114.8	51 m
114.8	119 m
115.5	67 m	Cae-Gybi Road
115.6	41 m	Cae-Gybi Road
115.8	24 m	Cae-Gybi Road
115.9	58 m	Cae-Gybi Road
116.5	77 m	A487

How it was measured

Route: a round trip from Machynlleth, 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 Machynlleth?

There are three lengths: 60, 120, 200 km. The calculated routes measure 54.9, 116.7, 220.2 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 Machynlleth have?

On 120 km we count 255 curves, 208 of them away from junctions. That is 178.2 free curves per 100 km.

How tight is the tightest curve?

On 120 km the tightest radius is 19 m, at km 98.5. The median radius of all curves is 65 m.

How much climbing does the route have?

On 120 km it is 1850 m of ascent. The highest point is 542 m, the lowest 9 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.