Motorcycle and car loop from Sondrio

From Sondrio (Lombardy) 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: 129.5km
Curves: 399
Climbing: 4959m
Median radius: 56m
Curves per 100 km: 234.8

Map of the 130 km round trip from Sondrio

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

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

Curve character

Of 129.5 km, 55.2 km run through curves. The rest is straight or a junction turn.

Tight: 5.6 km, 4.4 %; radius under 60 m
Medium: 25.4 km, 20.2 %; 60 to 180 m
Wide: 24.2 km, 19.2 %; 180 to 400 m
Straights and junctions: 70.7 km, 56.2 %

Key figures of the route

Tightest curve: At km 105.2: radius 15 m, left.
Longest curve passage: 44 curves over 7.5 km, from km 99.2.
Densest curve stretch: 54 curves over 10 km, from km 98.0. The quieter kilometres come before.
Longest climb: 19.7 km with 1259 m of ascent, from km 38.5 on SP15. Average gradient 6.4 %.

Elevation profile

From 277 m to 2125 m. 4959 m up, 4970 m down.

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

Turning points

High km 18.6: 2125 m
High km 58.1: 1561 m
High km 100.9: 2090 m
Low km 103.0: 2049 m
High km 105.2: 2092 m
Low km 123.4: 277 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	129.5	130.8
Curves	299	300
Curves per 100 km	230.9	229.3
Motorway	0.0 km	0.0 km

Among the cities

Rank 23 of 70 cities in Italy. Median 166.2 curves per 100 km, Sondrio sits at 215.4.

Similar cities

All lengths from Sondrio

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	63.3 km	123 / 157	194.3	69 m	2077 m
60 km	Reverse	63.3 km	126 / 157	199.1	78 m	2064 m
120 km	Outbound	129.5 km	299 / 400	230.9	58 m	4962 m
120 km	Reverse	129.5 km	304 / 399	234.8	56 m	4959 m
200 km	Outbound	213.9 km	473 / 516	221.1	79 m	4593 m
200 km	Reverse	213.9 km	471 / 513	220.2	80 m	4571 m

Every curve with its position

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

km	Radius	Road
2.4	167 m	Viale dello Stadio
5.6	104 m	SS38
5.7	2000 m	SS38
7.5	943 m	Via San Giorgio
7.8	99 m	Via San Giorgio
8.7	26 m	Via San Giorgio
9.1	27 m	Via San Giorgio
9.2	22 m	Via San Giorgio
10.0	50 m	Via Simonini
10.1	50 m	Via Simonini
10.2	17 m	Via Simonini
10.6	101 m	Via Grande
10.9	251 m	Via Grande
12.4	17 m
14.1	18 m
14.2	151 m
15.7	81 m
15.9	97 m
16.2	18 m
17.0	59 m
17.6	77 m
17.9	18 m
18.6	18 m
18.8	102 m
19.0	114 m
19.1	50 m
19.1	50 m
19.2	50 m
19.5	38 m
19.5	66 m
19.9	18 m
20.7	112 m
20.8	67 m
21.0	105 m
21.5	19 m
21.6	79 m
21.8	72 m
21.9	37 m
22.2	72 m
22.3	45 m
22.8	149 m
22.9	26 m
22.9	20 m
23.3	59 m
23.4	18 m
23.6	82 m
23.7	73 m
24.0	67 m
24.2	14 m
24.4	36 m
24.5	36 m
24.8	131 m
25.1	313 m
25.5	147 m
25.6	65 m
25.8	68 m
26.0	58 m
26.1	45 m
26.2	45 m
26.2	45 m
26.3	45 m
26.7	71 m
26.7	71 m
26.8	43 m
26.9	43 m
27.1	56 m
27.3	63 m
27.4	42 m
27.7	95 m
28.0	59 m
28.4	75 m
28.5	59 m
28.6	92 m
29.2	117 m
29.3	48 m
29.5	82 m
29.6	18 m
29.7	18 m
29.9	81 m
30.1	23 m
30.1	20 m
30.6	355 m
30.7	51 m
30.9	67 m
31.1	54 m
31.2	36 m
32.1	104 m
32.2	84 m
32.7	17 m
33.0	117 m
33.2	18 m
33.4	98 m
33.6	70 m
33.8	32 m
33.9	32 m
34.0	50 m
35.0	18 m
35.8	63 m
36.4	147 m
36.9	18 m
37.2	158 m
37.7	23 m
38.1	55 m
38.6	198 m
40.0	47 m
40.2	38 m
40.4	61 m
42.3	19 m	Via Bona
42.7	17 m	Via Bona
43.0	50 m	Via Simonini
43.6	124 m	SP14
44.1	26 m	Via San Giorgio
45.0	200 m	Via San Giorgio
45.5	94 m	Via San Giorgio
51.8	2000 m	Via dello Stadio
52.6	1910 m	SP15
52.8	42 m	SP15
53.0	23 m	SP15
53.4	120 m	SP15
53.6	45 m	SP15
53.8	39 m	SP15
54.1	47 m	SP15
54.4	69 m	SP15
55.1	230 m	SP15
55.7	156 m	SP15
55.9	136 m	SP15
56.1	66 m	SP15
56.5	210 m	SP15
56.6	37 m	SP15
56.9	79 m	SP15
56.9	63 m	SP15
57.0	50 m	SP15
57.1	34 m	SP15
58.0	204 m	SP15
59.7	121 m	SP15
61.0	81 m	SP15
61.4	54 m	SP15
61.4	41 m	SP15
61.7	83 m	SP15
61.8	83 m	SP15
62.1	61 m	SP15
63.8	62 m	SP15
63.8	62 m	SP15
64.1	80 m	SP15
64.3	56 m	SP15
64.6	17 m	SP15
64.7	18 m	SP15
64.8	39 m	SP15
65.1	19 m	Via Bernina
65.3	59 m	Via Bernina
65.7	19 m	Via Bernina
65.8	17 m	Via Bernina
65.8	17 m	Via Bernina
67.0	47 m	Via Ezio Vanoni
67.7	17 m	Via Ezio Vanoni
67.8	74 m	Via Ezio Vanoni
67.9	19 m	Via Ezio Vanoni
68.1	19 m	Via Ezio Vanoni
68.5	18 m	St. Elisabetta - St. Antonio
68.7	32 m	St. Elisabetta - St. Antonio
69.0	21 m	St. Elisabetta - St. Antonio (Alta Via 8)
69.2	18 m	St. Elisabetta - St. Antonio (Alta Via 8)
69.6	68 m	St. Elizabetta - St. Antonio (Alta Via 8)
69.8	36 m	St. Elizabetta - St. Antonio (Alta Via 8)
70.2	50 m	St. Antonio - Dosso Dei Galli
70.3	19 m	St. Antonio - Dosso Dei Galli
70.8	18 m	St. Antonio - Dosso Dei Galli
72.0	85 m	St. Antonio - Dosso Dei Galli - Motta
72.4	19 m	St. Antonio - Dosso Dei Galli - Motta
72.6	51 m	St. Antonio - Dosso Dei Galli - Motta
73.1	71 m	St. Elizabetta - St. Antonio (Alta Via 8)
73.3	68 m	St. Elizabetta - St. Antonio (Alta Via 8)
73.8	18 m	St. Elisabetta - St. Antonio (Alta Via 8)
73.9	18 m	St. Elisabetta - St. Antonio (Alta Via 8)
74.1	28 m	St. Elizabetta - St. Antonio (Alta Via 8)
74.2	29 m	St. Elizabetta - St. Antonio (Alta Via 8)
74.3	38 m	St. Elizabetta - St. Antonio (Alta Via 8)
74.4	18 m	St. Elizabetta - St. Antonio (Alta Via 8)
74.4	18 m	St. Elizabetta - St. Antonio (Alta Via 8)
74.5	36 m	St. Elizabetta - St. Antonio (Alta Via 8)
74.8	19 m	Via Don Bosco
75.2	16 m	Via Don Bosco
75.6	79 m	Via Don Bosco
75.8	45 m	Via Don Bosco
77.0	19 m	Via Bernina
77.1	18 m	Via Bernina
77.1	18 m	Via Bernina
77.2	19 m	Via Bernina
77.7	19 m	Via Bernina
78.0	39 m	SP15
78.3	17 m	SP15
78.3	17 m	SP15
78.3	17 m	SP15
78.4	16 m	SP15
78.5	58 m	SP15
78.7	79 m	SP15
79.0	63 m	SP15
79.1	63 m	SP15
80.8	63 m	SP15
81.0	119 m	SP15
81.2	86 m	SP15
81.4	41 m	SP15
81.6	56 m	SP15
83.1	128 m	SP15
84.9	97 m	SP15
85.8	34 m	SP15
85.8	34 m	SP15
85.9	50 m	SP15
86.0	54 m	SP15
86.1	82 m	SP15
86.2	37 m	SP15
86.3	58 m	SP15
86.8	71 m	SP15
87.1	162 m	SP15
87.7	242 m	SP15
88.6	69 m	SP15
88.7	81 m	SP15
89.0	39 m	SP15
89.1	39 m	SP15
89.3	45 m	SP15
89.8	23 m	SP15
90.1	41 m	SP15
90.2	178 m	SP15
90.3	1679 m	SP15
91.0	2000 m	Viale Adua
92.6	51 m	Via Quattro Novembre
92.8	119 m	Via Quattro Novembre
94.6	116 m	Via Quattro Novembre
96.0	48 m	Via Piazza
96.1	18 m	Via Piazza
96.2	17 m	Via Farina
96.3	17 m	Via Farina
96.4	83 m	Via Farina
97.1	87 m	Via Farina
97.3	98 m	Via Farina
97.3	246 m	Via Farina
98.2	82 m
98.6	350 m
99.1	262 m
100.3	177 m
101.1	91 m
101.2	91 m
101.4	405 m
103.3	18 m
104.5	61 m
104.7	46 m
105.2	98 m
105.5	95 m
106.1	135 m
106.3	18 m
107.8	607 m
108.3	50 m
108.5	50 m
108.5	112 m
109.3	37 m
109.4	109 m
109.5	86 m
110.1	124 m
110.3	77 m
110.8	75 m
111.0	70 m
111.8	36 m
112.0	290 m
112.0	92 m
112.8	39 m
112.9	39 m
113.0	120 m
113.7	66 m
113.9	464 m
114.0	140 m
115.0	79 m
115.4	91 m
115.6	62 m
115.8	75 m
116.3	18 m
116.4	17 m
116.6	61 m
120.0	90 m
120.7	66 m
121.5	82 m
121.9	87 m
122.3	73 m
122.5	341 m
122.7	43 m
122.8	43 m
122.8	43 m
122.8	71 m
123.3	82 m
124.0	61 m	Via Vervio
124.0	91 m	Via Vervio
124.7	18 m	Via Farina
124.8	16 m	Via Farina
124.9	16 m	Via Farina
124.9	20 m	Via Piazza
125.1	48 m	Via Piazza
126.3	114 m	Via Panoramica
126.5	173 m	Via Panoramica
128.3	51 m	Via Panoramica
129.0	53 m	Via Giuseppe Piazzi

How it was measured

Route: a round trip from Sondrio, 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 Sondrio?

There are three lengths: 60, 120, 200 km. The calculated routes measure 63.3, 129.5, 213.9 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 Sondrio have?

On 120 km we count 400 curves, 299 of them away from junctions. That is 230.9 free curves per 100 km.

How tight is the tightest curve?

On 120 km the tightest radius is 14 m, at km 24.2. The median radius of all curves is 58 m.

How much climbing does the route have?

On 120 km it is 4962 m of ascent. The highest point is 2125 m, the lowest 277 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.