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Billys big un

📍
Abercynafon, Brecon and Merthyr Tydfil Junction Railway, Talybont-on-Usk, Powys, Wales, LD3 7YT, United Kingdom
Cat. 4

Estimated Climb Time

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Climb Profile

Altitude builds left to right while colour shows gradient severity for each part of Billys big un.

295 m335 m370 m410 m-4.7% from 0 m to 19 m-3.0% from 19 m to 39 m-0.9% from 39 m to 62 m5.9% from 62 m to 80 m6.0% from 80 m to 96 m12.8% from 96 m to 110 m13.4% from 110 m to 121 m14.6% from 121 m to 131 m12.0% from 131 m to 141 m9.8% from 141 m to 151 m7.6% from 151 m to 162 m5.0% from 162 m to 174 m4.4% from 174 m to 185 m16.8% from 185 m to 195 m21.1% from 195 m to 204 m18.6% from 204 m to 216 m16.2% from 216 m to 226 m15.0% from 226 m to 236 m14.1% from 236 m to 245 m12.2% from 245 m to 253 m11.1% from 253 m to 262 m8.9% from 262 m to 270 m8.6% from 270 m to 278 m6.2% from 278 m to 286 m6.3% from 286 m to 294 m4.8% from 294 m to 301 m3.1% from 301 m to 307 m1.4% from 307 m to 314 m0.0% from 314 m to 321 m0.0% from 321 m to 329 m6.0% from 329 m to 337 m5.2% from 337 m to 345 m5.9% from 345 m to 351 m17.8% from 351 m to 359 m15.4% from 359 m to 365 m16.4% from 365 m to 372 m17.9% from 372 m to 379 m16.0% from 379 m to 386 m13.0% from 386 m to 394 m10.5% from 394 m to 401 m8.3% from 401 m to 409 m13.8% from 409 m to 415 m9.5% from 415 m to 423 m8.2% from 423 m to 431 m6.3% from 431 m to 439 m4.9% from 439 m to 447 m2.5% from 447 m to 455 m1.1% from 455 m to 464 m5.7% from 464 m to 473 m5.6% from 473 m to 480 m4.0% from 480 m to 488 m2.9% from 488 m to 495 m2.5% from 495 m to 503 m0.0% from 503 m to 511 m0.0% from 511 m to 519 m7.7% from 519 m to 526 m7.9% from 526 m to 534 m12.0% from 534 m to 542 m11.7% from 542 m to 550 m10.4% from 550 m to 557 m9.5% from 557 m to 564 m10.6% from 564 m to 571 m12.2% from 571 m to 578 m12.0% from 578 m to 586 m11.6% from 586 m to 593 m12.1% from 593 m to 599 m11.7% from 599 m to 607 m8.7% from 607 m to 614 m8.5% from 614 m to 621 m10.1% from 621 m to 628 m11.0% from 628 m to 635 m9.4% from 635 m to 640 m10.8% from 640 m to 651 m21.8% from 651 m to 658 m18.4% from 658 m to 663 m8.2% from 663 m to 673 m5.6% from 673 m to 680 m10.5% from 680 m to 688 m6.8% from 688 m to 695 m4.4% from 695 m to 702 m5.7% from 702 m to 709 m5.5% from 709 m to 716 m5.7% from 716 m to 723 m4.2% from 723 m to 728 m-0.9% from 728 m to 739 m12.1% from 739 m to 745 m10.8% from 745 m to 752 m10.0% from 752 m to 759 m0.0% from 759 m to 766 m-5.6% from 766 m to 773 m-1.6% from 773 m to 779 m1.4% from 779 m to 786 m7.1% from 786 m to 790 m14.6% from 790 m to 801 m18.8% from 801 m to 807 m16.4% from 807 m to 812 m18.3% from 812 m to 818 m13.2% from 818 m to 825 m11.9% from 825 m to 832 m15.9% from 832 m to 838 m10.8% from 838 m to 845 m11.6% from 845 m to 852 m9.0% from 852 m to 858 m13.8% from 858 m to 865 m15.9% from 865 m to 872 m10.8% from 872 m to 878 m9.7% from 878 m to 885 m11.5% from 885 m to 892 m12.7% from 892 m to 899 m10.0% from 899 m to 908 m12.3% from 908 m to 915 m12.9% from 915 m to 921 m11.9% from 921 m to 928 m9.3% from 928 m to 935 m9.9% from 935 m to 942 m8.7% from 942 m to 949 m10.0% from 949 m to 957 m8.0% from 957 m to 965 m11.3% from 965 m to 972 m11.1% from 972 m to 978 m10.5% from 978 m to 986 m11.0% from 986 m to 993 m10.2% from 993 m to 999 m9.1% from 999 m to 1.0 km6.8% from 1.0 km to 1.0 km5.3% from 1.0 km to 1.0 km3.9% from 1.0 km to 1.0 km3.9% from 1.0 km to 1.0 km2.7% from 1.0 km to 1.0 km7.9% from 1.0 km to 1.0 km19.7% from 1.0 km to 1.1 km20.3% from 1.1 km to 1.1 km19.1% from 1.1 km to 1.1 km20.0% from 1.1 km to 1.1 km20.0% from 1.1 km to 1.1 km20.8% from 1.1 km to 1.1 km21.0% from 1.1 km to 1.1 km25.0% from 1.1 km to 1.1 km24.0% from 1.1 km to 1.1 km21.3% from 1.1 km to 1.1 km21.4% from 1.1 km to 1.1 km16.7% from 1.1 km to 1.1 km9.1% from 1.1 km to 1.1 km5.6% from 1.1 km to 1.2 km0.0% from 1.2 km to 1.2 km-9.1% from 1.2 km to 1.2 km-9.3% from 1.2 km to 1.2 km-11.8% from 1.2 km to 1.2 km-14.1% from 1.2 km to 1.2 km-13.4% from 1.2 km to 1.2 km-11.6% from 1.2 km to 1.2 km-10.6% from 1.2 km to 1.2 km-8.4% from 1.2 km to 1.2 km-7.1% from 1.2 km to 1.2 km-2.7% from 1.2 km to 1.2 km-3.9% from 1.2 km to 1.2 km1.2% from 1.2 km to 1.3 km1.9% from 1.3 km to 1.3 km1.1% from 1.3 km to 1.3 km2.4% from 1.3 km to 1.3 km3.8% from 1.3 km to 1.3 km5.1% from 1.3 km to 1.3 km4.2% from 1.3 km to 1.3 km8%8%9%10%6%0 m250 m500 m750 m1 km1.3 km
Gradient key0-3%3-6%6-9%9-12%12-15%15%+

Climb Stats

Combined metric and imperial stats for quick route planning.

Climb categoryCategory 4
Distance1.3 km / 0.81 miles
Elevation gain102.6 m / 337 ft
Average gradient7.9%
Maximum gradient16.8%
Elevation high407.37 m / 1,337 ft
Elevation low296.74 m / 974 ft
Climb difficulty score10,255.4

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Climb Rank

How does this climb compare against every other climb in the world?

🗺

This climb ranks 553,395th out of 2,710,652 worldwide cycling climbs.

🧮

Ranked as the 40,885th most difficult cycling climb of all 332,744 climbs in United Kingdom.

📉

Places 6,731st out of 26,148 cycling climbs in Wales.

⚖

Ranks 994th out of 2,830 cycling climbs in Powys.

⚖

Ranking 53rd out of 111 cycling climbs in Talybont-on-Usk.

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