Motorcycle and car loop from Letterkenny

From Letterkenny (Ulster) 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.

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Kilometres: 117.6km
Curves: 152
Climbing: 1307m
Median radius: 74m
Curves per 100 km: 94.4

Map of the 118 km round trip from Letterkenny

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

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

Curve character

Of 117.6 km, 22.9 km run through curves. The rest is straight or a junction turn.

Tight: 0.5 km, 0.4 %; radius under 60 m
Medium: 8.2 km, 7.0 %; 60 to 180 m
Wide: 14.3 km, 12.2 %; 180 to 400 m
Straights and junctions: 94.4 km, 80.5 %

Key figures of the route

Tightest curve: At km 43.6: radius 20 m, right.
Longest curve passage: 10 curves over 3.4 km, from km 40.5.
Densest curve stretch: 31 curves over 10 km, from km 84.5. The quieter kilometres come before.
First free curve: At km 0.1. Before that, no curve away from junctions lies on the route.
Longest climb: 13.1 km with 255 m of ascent, from km 21.6 on R250. Average gradient 1.9 %.

Elevation profile

From 3 m to 274 m. 1307 m up, 1302 m down.

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

Turning points

Low km 11.1: 121 m
High km 34.7: 274 m
High km 40.5: 184 m
Low km 45.2: 124 m
High km 58.9: 274 m
High km 76.4: 139 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	117.6	87.5
Curves	111	77
Curves per 100 km	94.4	88.0
Motorway	0.0 km	0.0 km

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

Among the cities

Rank 8 of 12 cities in Ireland. Median 100.0 curves per 100 km, Letterkenny sits at 91.5.

Similar cities

All lengths from Letterkenny

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	61.8 km	46 / 75	74.4	82 m	612 m
60 km	Reverse	61.8 km	46 / 75	74.4	84 m	619 m
120 km	Outbound	117.6 km	111 / 152	94.4	74 m	1307 m
120 km	Reverse	117.6 km	110 / 152	93.5	75 m	1304 m
200 km	Outbound	205.3 km	217 / 285	105.7	69 m	1732 m
200 km	Reverse	205.3 km	215 / 281	104.7	69 m	1717 m

Every curve with its position

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

km	Radius	Road
0.1	38 m	R250
0.7	47 m	R250
0.9	35 m	R250
3.6	74 m
6.0	75 m
10.5	40 m
10.6	40 m
11.5	60 m
12.2	65 m
12.3	43 m
12.8	38 m
13.9	36 m
14.7	121 m
15.1	31 m
16.0	112 m
17.6	52 m
17.6	33 m
17.8	69 m
21.6	178 m	R250
22.0	158 m	R250
22.8	179 m	R250
28.1	155 m	R250
31.6	118 m	R250
36.5	216 m	R250
36.9	91 m	R250
37.0	58 m	R250
37.1	46 m	R250
37.4	49 m	R250
37.5	49 m	R250
37.8	39 m	R250
39.7	79 m
40.5	85 m
40.9	122 m
41.4	123 m
42.0	51 m
42.2	51 m
42.3	93 m
42.9	52 m
43.4	54 m
43.6	20 m
43.6	20 m
45.1	56 m	R252
46.8	97 m	R252
48.4	209 m	R252
54.1	94 m	R250
54.7	188 m	R250
55.8	39 m	R250
56.0	58 m	R250
56.2	49 m	R250
56.4	46 m	R250
56.6	59 m	R250
56.8	76 m	R250
56.9	223 m	R250
61.8	124 m	R250
65.4	157 m	R250
70.3	147 m	R251
70.8	158 m	R251
73.6	88 m	R251
73.8	94 m	R251
74.1	109 m	R251
74.2	124 m	R251
75.9	86 m	R251
76.1	152 m	R251
78.5	47 m	R251
78.8	47 m	R251
78.9	40 m	R251
81.3	72 m	R251
81.7	138 m	R251
84.5	107 m	R251
85.2	50 m	R251
85.7	70 m	R251
85.9	99 m	R251
87.4	199 m	R251
88.0	40 m
88.1	89 m
88.2	110 m
88.5	145 m
88.8	126 m
89.4	66 m
89.5	66 m
89.6	74 m
89.7	74 m
89.9	60 m
89.9	60 m
90.0	70 m
90.4	86 m
90.5	65 m
90.7	65 m
91.6	61 m
91.7	90 m
91.9	84 m
92.3	67 m
92.4	59 m
92.4	59 m
92.6	77 m
92.8	64 m
92.9	64 m
94.1	93 m
94.2	92 m
94.7	203 m	R251
96.3	98 m	R251
96.6	70 m	R251
96.8	52 m	R251
97.8	107 m	R251
98.2	155 m	R255
100.8	132 m	R255
101.8	192 m	R255
102.5	149 m	R255
105.9	149 m	N56
106.4	95 m	N56
107.8	268 m	N56

How it was measured

Route: a round trip from Letterkenny, 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 Letterkenny?

There are three lengths: 60, 120, 200 km. The calculated routes measure 61.8, 117.6, 205.3 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 Letterkenny have?

On 120 km we count 152 curves, 111 of them away from junctions. That is 94.4 free curves per 100 km.

How tight is the tightest curve?

On 120 km the tightest radius is 20 m, at km 43.6. The median radius of all curves is 74 m.

How much climbing does the route have?

On 120 km it is 1307 m of ascent. The highest point is 274 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.