Motorcycle and car loop from Dolgellau

From Dolgellau (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.

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

Kilometres: 198.0km
Curves: 397
Climbing: 3146m
Median radius: 68m
Curves per 100 km: 174.2

Map of the 198 km round trip from Dolgellau

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 198.0 km, 69.3 km run through curves. The rest is straight or a junction turn.

Tight: 1.4 km, 0.7 %; radius under 60 m
Medium: 26.6 km, 13.5 %; 60 to 180 m
Wide: 41.3 km, 20.9 %; 180 to 400 m
Straights and junctions: 128.0 km, 64.9 %

Key figures of the route

Tightest curve: At km 23.5 on Pont y Pennant: radius 18 m, left.
Longest curve passage: 14 curves over 3.4 km, from km 23.0 on Pont y Pennant.
Densest curve stretch: 45 curves over 10 km, from km 162.5. The quieter kilometres come before.
Longest climb: 13.3 km with 281 m of ascent, from km 124.2 on B4407. Average gradient 2.1 %.

Elevation profile

From 12 m to 481 m. 3146 m up, 3143 m down.

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

Turning points

High km 54.0: 185 m
Low km 54.8: 160 m
High km 61.1: 354 m
Low km 67.6: 160 m
High km 144.9: 456 m
Low km 191.4: 100 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	198.0	178.8
Curves	349	239
Curves per 100 km	176.3	133.7
Motorway	0.0 km	0.0 km

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

Among the cities

Rank 12 of 50 cities in United Kingdom. Median 102.2 curves per 100 km, Dolgellau sits at 159.0.

Similar cities

All lengths from Dolgellau

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	56.4 km	76 / 107	134.9	61 m	1021 m
60 km	Reverse	56.4 km	76 / 105	134.9	60 m	1021 m
120 km	Outbound	123.6 km	205 / 239	165.9	70 m	1243 m
120 km	Reverse	123.6 km	200 / 239	161.8	70 m	1261 m
200 km	Outbound	198.0 km	349 / 406	176.3	68 m	3136 m
200 km	Reverse	198.0 km	345 / 397	174.2	68 m	3146 m

Every curve with its position

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

km	Radius	Road
1.4	79 m
1.6	61 m
1.6	55 m
1.8	74 m
2.5	35 m
2.7	42 m
3.8	43 m
4.0	43 m
4.7	63 m
5.2	59 m
5.3	59 m
5.6	48 m
5.6	48 m
6.1	67 m	Pont Abergeirw
6.3	34 m	Pont Abergeirw
6.4	26 m	Pont Abergeirw
6.5	63 m	Pont Abergeirw
6.6	63 m	Pont Abergeirw
6.7	44 m	Pont Abergeirw
6.8	38 m	Pont Abergeirw
6.9	33 m	Pont Abergeirw
8.9	81 m	Pont Abergeirw
9.2	54 m	Pont Abergeirw
9.5	62 m	Pont Abergeirw
9.6	62 m	Pont Abergeirw
10.0	83 m	Pont Abergeirw
10.1	56 m	Pont Abergeirw
10.4	88 m	Pont Abergeirw
11.4	62 m	Pont Abergeirw
12.2	86 m	Pont Abergeirw
13.3	73 m	Pont Abergeirw
13.3	65 m	Pont Abergeirw
13.5	51 m	Pont Abergeirw
13.9	51 m	Pont Abergeirw
14.1	40 m	Pont Abergeirw
14.4	108 m	Pont Abergeirw
14.5	39 m	Pont Abergeirw
14.6	39 m	Pont Abergeirw
15.3	66 m	Pont Abergeirw
15.4	54 m	Pont Abergeirw
15.5	70 m	Pont Abergeirw
15.8	76 m	Pont Abergeirw
15.9	68 m	Pont Abergeirw
16.1	24 m	Pont Abergeirw
16.2	46 m	Pont Abergeirw
16.4	46 m	Pont Abergeirw
16.7	49 m	Pont Abergeirw
16.8	49 m	Pont Dol-y-mynach
16.9	51 m	Pont Dol-y-mynach
17.1	76 m	Pont Dol-y-mynach
17.4	72 m	Pont Dol-y-mynach
17.6	72 m	Pont Dol-y-mynach
17.9	69 m	Pont Dol-y-mynach
18.9	66 m	Pont Dol-y-mynach
19.0	63 m	Pont Dol-y-mynach
19.1	63 m	Pont Dol-y-mynach
19.3	85 m	Pont Dol-y-mynach
19.4	85 m	Pont Dol-y-mynach
19.6	40 m	Pont Dol-y-mynach
19.8	88 m	Pont Dol-y-mynach
20.7	155 m	Pont Faen
21.6	67 m	Pont Faen
21.8	45 m	Pont Faen
22.4	146 m	Pont Faen
22.6	63 m	Pont Faen
22.8	88 m	Pont Faen
22.8	88 m	Pont Faen
23.0	112 m	Pont Faen
23.2	88 m	Pont Faen
25.2	76 m
25.7	46 m
25.8	40 m
25.9	33 m
26.8	37 m
27.1	152 m
27.6	71 m
27.6	71 m
27.8	65 m
27.9	61 m
28.4	52 m
28.6	53 m
28.6	53 m
28.8	34 m
29.0	82 m
29.1	65 m
29.2	55 m
29.5	63 m
29.7	53 m
29.8	53 m
29.9	56 m
30.3	69 m
30.8	104 m
30.9	56 m
30.9	53 m
31.0	53 m
31.1	63 m
31.3	63 m
31.4	54 m
31.6	65 m
31.9	34 m
32.0	34 m
32.1	69 m
32.2	52 m
32.4	52 m
32.4	59 m
32.5	46 m
32.8	158 m
32.9	61 m
33.1	106 m
33.4	110 m
33.8	168 m
34.1	1149 m
34.3	99 m
34.8	114 m
34.8	33 m
35.0	46 m
35.3	158 m
46.9	159 m	A4212
50.3	104 m	B4391
52.1	59 m	B4391
54.8	79 m	B4391
56.1	82 m	B4391
57.0	100 m	B4391
57.3	64 m	B4391
57.5	98 m	B4391
58.3	87 m	B4407
58.5	45 m	B4407
58.7	66 m	B4407
59.1	78 m	B4407
60.8	77 m	B4407
61.5	145 m	B4407
62.9	79 m	B4407
64.4	94 m	B4407
70.5	133 m	B4407
70.7	140 m	B4407
71.1	63 m	B4407
72.6	101 m	B4407
72.7	101 m	B4407
73.3	69 m	B4407
73.4	89 m	B4407
73.6	105 m	B4407
73.8	83 m	B4407
77.0	89 m	A543
77.8	56 m	A543
78.1	92 m	A543
78.7	145 m	A543
79.7	60 m
80.0	62 m
81.0	70 m
81.2	44 m
81.2	59 m
81.9	100 m
86.2	126 m
86.4	52 m
86.7	82 m
86.7	48 m
86.8	48 m
87.3	76 m
87.4	69 m
87.6	56 m
87.8	34 m
88.1	82 m
88.3	201 m
88.7	93 m
88.8	93 m
89.0	111 m
90.0	109 m
90.3	90 m
90.5	62 m
91.2	149 m
91.7	135 m
94.1	53 m	B4501
94.9	98 m	B4501
95.3	120 m	B4501
95.6	74 m	B4501
96.9	96 m	B4501
97.3	83 m	B4501
100.5	133 m	A4212
101.7	67 m	A4212
102.5	169 m	B4391
102.8	135 m	B4391
103.0	73 m	B4391
103.2	120 m	B4391
105.2	102 m	B4391
105.5	116 m	B4391
106.5	111 m	B4391
106.9	164 m	B4391
107.1	78 m	B4391
107.2	52 m	B4391
107.3	52 m	B4391
107.5	60 m	B4391
108.2	80 m	B4391
108.6	25 m	B4391
108.8	142 m	B4391
109.1	19 m	B4391
109.2	29 m	B4391
109.4	100 m	B4391
109.6	89 m	B4391
110.7	134 m	B4391
112.7	92 m	B4391
114.3	90 m	B4391
114.4	74 m	B4391
114.7	22 m	B4391
114.8	22 m	B4391
116.5	142 m	B4391
117.2	37 m	B4391
117.2	37 m	B4391
118.5	49 m	B4391
118.9	82 m	B4391
119.5	109 m	B4391
120.5	77 m	B4391
120.7	114 m	B4391
122.0	50 m	B4391
122.4	50 m	B4391
122.5	87 m	B4391
123.3	188 m	B4391
125.5	210 m	B4391
126.5	54 m	Station Road
127.0	104 m	Station Road
127.7	68 m	Station Road
127.8	68 m	Station Road
128.4	60 m	Station Road
128.6	95 m	Station Road
128.9	72 m	Station Road
130.0	62 m	Station Road
130.2	62 m	Station Road
130.5	65 m	Waterfall Street
130.6	63 m	Waterfall Street
130.7	63 m	Waterfall Street
130.9	100 m	Waterfall Street
132.0	73 m	Waterfall Street
133.8	81 m	Waterfall Street
134.1	67 m	Waterfall Street
134.4	71 m	Waterfall Street
134.4	71 m	Waterfall Street
135.8	116 m	Waterfall Street
136.4	100 m	Waterfall Street
137.0	102 m	Waterfall Street
137.5	111 m	Waterfall Street
138.4	80 m	Waterfall Street
138.7	88 m	Waterfall Street
138.8	70 m	Waterfall Street
139.1	70 m	Waterfall Street
139.3	62 m	Waterfall Street
139.6	85 m	Waterfall Street
141.4	75 m	Waterfall Street
142.5	115 m	Waterfall Street
142.6	100 m	Waterfall Street
142.7	66 m	Waterfall Street
143.0	66 m	Waterfall Street
143.1	76 m	Waterfall Street
143.9	54 m
144.0	29 m
144.2	29 m
144.4	73 m
144.6	84 m
144.9	48 m
145.0	47 m	B4396
145.1	49 m	B4396
145.3	53 m	B4396
145.4	140 m	B4396
146.7	91 m	B4396
149.2	65 m	B4396
149.9	53 m	B4396
149.9	53 m	B4396
150.1	86 m	B4396
150.8	129 m	B4396
152.1	79 m	B4396
152.3	106 m	B4396
153.0	47 m	B4396
153.0	47 m	B4396
153.8	116 m	B4396
154.0	96 m	B4396
154.6	23 m	B4396
154.7	39 m	B4396
154.9	39 m	B4396
156.1	42 m	B4396
157.3	85 m	B4396
158.5	71 m	B4393
158.5	76 m	B4393
158.7	64 m	B4393
158.9	39 m	B4393
159.9	54 m	B4393
160.0	54 m	B4393
160.1	37 m	B4393
160.1	37 m	B4393
160.2	37 m	B4393
160.3	79 m	B4393
160.4	79 m	B4393
160.6	104 m	B4393
161.2	67 m	B4393
161.4	67 m	B4393
161.5	71 m	B4393
161.6	93 m	B4393
161.9	65 m	B4393
162.2	65 m	B4393
162.2	65 m	B4393
162.3	79 m	B4393
164.5	23 m	B4393
164.7	49 m	B4393
165.3	139 m	B4393
165.9	106 m	B4393
166.4	45 m	B4393
168.2	63 m	Pont y Pennant
168.4	62 m	Pont y Pennant
169.2	46 m	Pont y Pennant
169.5	66 m	Pont y Pennant
169.6	66 m	Pont y Pennant
169.8	98 m	Pont y Pennant
170.0	71 m	Pont y Pennant
170.7	48 m	Pont y Pennant
170.7	48 m	Pont y Pennant
170.9	55 m	Pont y Pennant
171.1	75 m	Pont y Pennant
171.6	80 m	Pont y Pennant
171.8	72 m	Pont y Pennant
171.9	58 m	Pont y Pennant
172.2	30 m	Pont y Pennant
172.3	30 m	Pont y Pennant
172.4	55 m	Pont y Pennant
172.7	118 m	Pont y Pennant
172.8	116 m	Pont y Pennant
173.2	152 m	Pont y Pennant
173.6	138 m	Pont y Pennant
174.3	18 m	Pont y Pennant
174.6	90 m	Pont y Pennant
174.8	111 m	Pont y Pennant
175.3	55 m	Pont y Pennant
176.0	84 m	Pont Dol-y-bont
176.1	84 m	Pont Dol-y-bont
176.3	74 m	Pont Dol-y-bont
176.7	50 m	Pont Dol-y-bont
178.5	71 m	Pont Dol-y-bont
178.6	75 m	Pont Dol-y-bont
179.2	65 m	Pont Dol-y-bont
181.8	83 m	Pont Dol-y-bont
182.9	74 m	Pont Dol-y-bont
183.1	95 m	Pont Dol-y-bont
183.3	61 m	Pont Dol-y-bont
183.6	70 m	Pont Dol-y-bont
189.5	70 m	A470
189.7	35 m	A470
194.6	58 m	Fron Serth
194.8	65 m	Fron Serth
195.1	39 m	Fron Serth
195.2	39 m	Fron Serth
195.4	81 m	Fron Serth
196.9	63 m	Fron Serth
197.8	54 m	Arran Road

How it was measured

Route: a round trip from Dolgellau, 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 Dolgellau?

There are three lengths: 60, 120, 200 km. The calculated routes measure 56.4, 123.6, 198.0 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 Dolgellau have?

On 120 km we count 239 curves, 205 of them away from junctions. That is 165.9 free curves per 100 km.

How tight is the tightest curve?

On 120 km the tightest radius is 19 m, at km 93.1. The median radius of all curves is 70 m.

How much climbing does the route have?

On 120 km it is 1243 m of ascent. The highest point is 338 m, the lowest 3 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.