st Jean - rochechinard

📍
Route de Rochechinard, Saint-Jean-en-Royans, Die, Drôme, Auvergne-Rhône-Alpes, Metropolitan France, 26190, France

Estimated Climb Time

Loading your rider settings for st Jean - rochechinard...

Save your rider settings to unlock climb-time estimates and the effort table below.

Climb Profile

Altitude builds left to right while colour shows gradient severity for each part of st Jean - rochechinard.

255 m300 m340 m385 m2.2% from 0 m to 9 m9.9% from 9 m to 18 m7.1% from 18 m to 27 m6.1% from 27 m to 35 m6.8% from 35 m to 42 m4.8% from 42 m to 53 m5.0% from 53 m to 61 m3.5% from 61 m to 69 m2.6% from 69 m to 77 m2.7% from 77 m to 84 m3.8% from 84 m to 92 m1.3% from 92 m to 100 m0.0% from 100 m to 107 m2.7% from 107 m to 114 m1.4% from 114 m to 121 m2.6% from 121 m to 129 m1.5% from 129 m to 136 m0.0% from 136 m to 144 m4.4% from 144 m to 151 m1.4% from 151 m to 158 m4.2% from 158 m to 165 m4.4% from 165 m to 172 m7.4% from 172 m to 179 m9.9% from 179 m to 186 m8.8% from 186 m to 193 m7.1% from 193 m to 200 m7.6% from 200 m to 208 m7.1% from 208 m to 216 m5.7% from 216 m to 223 m6.3% from 223 m to 231 m4.6% from 231 m to 238 m9.6% from 238 m to 245 m9.2% from 245 m to 253 m8.7% from 253 m to 260 m11.1% from 260 m to 267 m8.0% from 267 m to 274 m9.9% from 274 m to 281 m9.7% from 281 m to 289 m8.0% from 289 m to 296 m5.3% from 296 m to 304 m0.0% from 304 m to 311 m-1.3% from 311 m to 318 m-5.3% from 318 m to 326 m-3.9% from 326 m to 333 m-5.9% from 333 m to 340 m-3.0% from 340 m to 347 m-4.8% from 347 m to 355 m-4.3% from 355 m to 362 m-1.6% from 362 m to 368 m-4.8% from 368 m to 377 m1.2% from 377 m to 385 m6.8% from 385 m to 392 m8.7% from 392 m to 399 m4.2% from 399 m to 406 m4.5% from 406 m to 413 m3.1% from 413 m to 419 m1.6% from 419 m to 426 m-1.5% from 426 m to 432 m0.0% from 432 m to 439 m-7.2% from 439 m to 446 m-2.7% from 446 m to 453 m4.8% from 453 m to 459 m3.6% from 459 m to 465 m7.4% from 465 m to 472 m7.0% from 472 m to 479 m6.0% from 479 m to 486 m6.3% from 486 m to 492 m5.9% from 492 m to 497 m5.4% from 497 m to 503 m6.8% from 503 m to 509 m4.6% from 509 m to 515 m5.0% from 515 m to 521 m5.4% from 521 m to 527 m5.6% from 527 m to 532 m7.3% from 532 m to 538 m7.4% from 538 m to 543 m6.5% from 543 m to 549 m6.9% from 549 m to 555 m9.7% from 555 m to 561 m12.7% from 561 m to 567 m7.6% from 567 m to 573 m6.2% from 573 m to 580 m7.5% from 580 m to 587 m6.9% from 587 m to 594 m6.2% from 594 m to 600 m6.2% from 600 m to 607 m5.3% from 607 m to 612 m2.6% from 612 m to 620 m4.2% from 620 m to 627 m0.0% from 627 m to 632 m-1.2% from 632 m to 641 m-4.5% from 641 m to 650 m-3.7% from 650 m to 658 m-3.7% from 658 m to 666 m-4.0% from 666 m to 673 m-2.9% from 673 m to 680 m-4.5% from 680 m to 687 m-3.8% from 687 m to 695 m-2.6% from 695 m to 703 m-4.0% from 703 m to 710 m-2.5% from 710 m to 718 m-1.2% from 718 m to 727 m-2.4% from 727 m to 735 m-2.2% from 735 m to 744 m-4.2% from 744 m to 751 m-3.2% from 751 m to 757 m-2.9% from 757 m to 768 m-1.3% from 768 m to 775 m-1.2% from 775 m to 784 m-2.6% from 784 m to 791 m-1.2% from 791 m to 800 m0.0% from 800 m to 806 m1.2% from 806 m to 814 m5.1% from 814 m to 822 m5.6% from 822 m to 829 m4.9% from 829 m to 837 m4.1% from 837 m to 845 m4.2% from 845 m to 852 m4.3% from 852 m to 859 m1.3% from 859 m to 867 m3.2% from 867 m to 873 m0.0% from 873 m to 880 m0.0% from 880 m to 887 m0.0% from 887 m to 894 m-1.5% from 894 m to 901 m0.0% from 901 m to 908 m1.6% from 908 m to 914 m0.0% from 914 m to 920 m0.0% from 920 m to 926 m-1.5% from 926 m to 933 m-1.4% from 933 m to 940 m-1.4% from 940 m to 947 m-3.1% from 947 m to 954 m-1.5% from 954 m to 960 m-2.9% from 960 m to 967 m-4.0% from 967 m to 975 m-3.1% from 975 m to 981 m-4.7% from 981 m to 988 m-3.2% from 988 m to 994 m-3.1% from 994 m to 1.0 km-3.1% from 1.0 km to 1.0 km-1.8% from 1.0 km to 1.0 km-3.2% from 1.0 km to 1.0 km-1.5% from 1.0 km to 1.0 km-1.4% from 1.0 km to 1.0 km5.2% from 1.0 km to 1.0 km5.1% from 1.0 km to 1.0 km4.1% from 1.0 km to 1.1 km2.7% from 1.1 km to 1.1 km1.3% from 1.1 km to 1.1 km1.4% from 1.1 km to 1.1 km4.3% from 1.1 km to 1.1 km4.0% from 1.1 km to 1.1 km2.7% from 1.1 km to 1.1 km4.1% from 1.1 km to 1.1 km3.0% from 1.1 km to 1.1 km1.4% from 1.1 km to 1.1 km2.7% from 1.1 km to 1.1 km1.3% from 1.1 km to 1.1 km1.4% from 1.1 km to 1.1 km1.5% from 1.1 km to 1.1 km1.2% from 1.1 km to 1.2 km2.6% from 1.2 km to 1.2 km2.8% from 1.2 km to 1.2 km4.1% from 1.2 km to 1.2 km6.8% from 1.2 km to 1.2 km5.6% from 1.2 km to 1.2 km5.5% from 1.2 km to 1.2 km5.3% from 1.2 km to 1.2 km2.8% from 1.2 km to 1.2 km4.0% from 1.2 km to 1.2 km2.7% from 1.2 km to 1.2 km1.3% from 1.2 km to 1.2 km1.4% from 1.2 km to 1.2 km0.0% from 1.2 km to 1.3 km0.0% from 1.3 km to 1.3 km0.0% from 1.3 km to 1.3 km-1.3% from 1.3 km to 1.3 km3.0% from 1.3 km to 1.3 km2.6% from 1.3 km to 1.3 km6.8% from 1.3 km to 1.3 km12.3% from 1.3 km to 1.3 km10.1% from 1.3 km to 1.3 km6.3% from 1.3 km to 1.3 km6.8% from 1.3 km to 1.3 km4.9% from 1.3 km to 1.3 km2.5% from 1.3 km to 1.3 km2.5% from 1.3 km to 1.4 km0.0% from 1.4 km to 1.4 km0.0% from 1.4 km to 1.4 km-2.6% from 1.4 km to 1.4 km6.3% from 1.4 km to 1.4 km6.1% from 1.4 km to 1.4 km6.3% from 1.4 km to 1.4 km6.0% from 1.4 km to 1.4 km6.0% from 1.4 km to 1.4 km6.4% from 1.4 km to 1.4 km6.3% from 1.4 km to 1.4 km6.2% from 1.4 km to 1.4 km7.3% from 1.4 km to 1.4 km8.9% from 1.4 km to 1.5 km21.8% from 1.5 km to 1.5 km20.0% from 1.5 km to 1.5 km18.3% from 1.5 km to 1.5 km9.6% from 1.5 km to 1.5 km5.9% from 1.5 km to 1.5 km3.9% from 1.5 km to 1.5 km5.4% from 1.5 km to 1.5 km5.1% from 1.5 km to 1.5 km3.9% from 1.5 km to 1.5 km5.3% from 1.5 km to 1.5 km3.7% from 1.5 km to 1.5 km4.1% from 1.5 km to 1.6 km5.4% from 1.6 km to 1.6 km6.7% from 1.6 km to 1.6 km5.1% from 1.6 km to 1.6 km4.1% from 1.6 km to 1.6 km10.5% from 1.6 km to 1.6 km6.6% from 1.6 km to 1.6 km6.8% from 1.6 km to 1.6 km5.8% from 1.6 km to 1.6 km2.9% from 1.6 km to 1.6 km7.8% from 1.6 km to 1.6 km6.9% from 1.6 km to 1.6 km6.5% from 1.6 km to 1.6 km7.5% from 1.6 km to 1.6 km6.8% from 1.6 km to 1.7 km8.6% from 1.7 km to 1.7 km5.2% from 1.7 km to 1.7 km7.4% from 1.7 km to 1.7 km4.3% from 1.7 km to 1.7 km1.4% from 1.7 km to 1.7 km0.0% from 1.7 km to 1.7 km0.0% from 1.7 km to 1.7 km-5.3% from 1.7 km to 1.7 km-4.6% from 1.7 km to 1.7 km-2.3% from 1.7 km to 1.7 km-1.2% from 1.7 km to 1.7 km-3.8% from 1.7 km to 1.7 km-2.5% from 1.7 km to 1.8 km-4.8% from 1.8 km to 1.8 km-3.7% from 1.8 km to 1.8 km-1.3% from 1.8 km to 1.8 km0.0% from 1.8 km to 1.8 km-1.4% from 1.8 km to 1.8 km0.0% from 1.8 km to 1.8 km-1.2% from 1.8 km to 1.8 km0.0% from 1.8 km to 1.8 km2.6% from 1.8 km to 1.8 km0.0% from 1.8 km to 1.8 km0.0% from 1.8 km to 1.8 km3.9% from 1.8 km to 1.8 km3.6% from 1.8 km to 1.8 km4.5% from 1.8 km to 1.9 km1.4% from 1.9 km to 1.9 km0.0% from 1.9 km to 1.9 km0.0% from 1.9 km to 1.9 km0.0% from 1.9 km to 1.9 km0.0% from 1.9 km to 1.9 km-2.8% from 1.9 km to 1.9 km-2.6% from 1.9 km to 1.9 km-4.1% from 1.9 km to 1.9 km-2.8% from 1.9 km to 1.9 km-3.0% from 1.9 km to 1.9 km-1.5% from 1.9 km to 1.9 km-2.7% from 1.9 km to 1.9 km-1.4% from 1.9 km to 1.9 km-2.9% from 1.9 km to 2.0 km1.2% from 2.0 km to 2.0 km2.9% from 2.0 km to 2.0 km2.8% from 2.0 km to 2.0 km2.7% from 2.0 km to 2.0 km3.0% from 2.0 km to 2.0 km2.8% from 2.0 km to 2.0 km1.3% from 2.0 km to 2.0 km2.7% from 2.0 km to 2.0 km6.7% from 2.0 km to 2.0 km6.2% from 2.0 km to 2.0 km5.9% from 2.0 km to 2.0 km7.1% from 2.0 km to 2.0 km6.8% from 2.0 km to 2.0 km7.2% from 2.0 km to 2.1 km6.1% from 2.1 km to 2.1 km7.2% from 2.1 km to 2.1 km8.0% from 2.1 km to 2.1 km5.6% from 2.1 km to 2.1 km7.4% from 2.1 km to 2.1 km5.1% from 2.1 km to 2.1 km3.0% from 2.1 km to 2.1 km5.3% from 2.1 km to 2.1 km5.8% from 2.1 km to 2.1 km6.2% from 2.1 km to 2.1 km5.8% from 2.1 km to 2.1 km6.8% from 2.1 km to 2.1 km6.5% from 2.1 km to 2.1 km5.9% from 2.1 km to 2.2 km3.0% from 2.2 km to 2.2 km4.5% from 2.2 km to 2.2 km3.1% from 2.2 km to 2.2 km2.6% from 2.2 km to 2.2 km2.9% from 2.2 km to 2.2 km1.4% from 2.2 km to 2.2 km0.0% from 2.2 km to 2.2 km1.5% from 2.2 km to 2.2 km0.0% from 2.2 km to 2.2 km1.6% from 2.2 km to 2.2 km2.9% from 2.2 km to 2.2 km1.5% from 2.2 km to 2.2 km1.5% from 2.2 km to 2.2 km-1.5% from 2.2 km to 2.2 km0.0% from 2.2 km to 2.3 km-1.6% from 2.3 km to 2.3 km-1.7% from 2.3 km to 2.3 km0.0% from 2.3 km to 2.3 km-3.1% from 2.3 km to 2.3 km-3.0% from 2.3 km to 2.3 km-2.8% from 2.3 km to 2.3 km-3.2% from 2.3 km to 2.3 km-3.4% from 2.3 km to 2.3 km-2.6% from 2.3 km to 2.3 km-1.7% from 2.3 km to 2.3 km-1.5% from 2.3 km to 2.3 km-3.6% from 2.3 km to 2.3 km-3.1% from 2.3 km to 2.3 km1.9% from 2.3 km to 2.3 km4.5% from 2.3 km to 2.3 km5.7% from 2.3 km to 2.4 km6.1% from 2.4 km to 2.4 km4.3% from 2.4 km to 2.4 km4.6% from 2.4 km to 2.4 km4.7% from 2.4 km to 2.4 km4.8% from 2.4 km to 2.4 km1.6% from 2.4 km to 2.4 km3.1% from 2.4 km to 2.4 km1.5% from 2.4 km to 2.4 km1.8% from 2.4 km to 2.4 km2.9% from 2.4 km to 2.4 km1.5% from 2.4 km to 2.4 km1.8% from 2.4 km to 2.4 km1.7% from 2.4 km to 2.4 km1.6% from 2.4 km to 2.4 km1.8% from 2.4 km to 2.4 km0.0% from 2.4 km to 2.5 km1.9% from 2.5 km to 2.5 km3.6% from 2.5 km to 2.5 km4.7% from 2.5 km to 2.5 km3.3% from 2.5 km to 2.5 km5.6% from 2.5 km to 2.5 km3.3% from 2.5 km to 2.5 km6.2% from 2.5 km to 2.5 km4.8% from 2.5 km to 2.5 km4.8% from 2.5 km to 2.5 km4.6% from 2.5 km to 2.5 km5.4% from 2.5 km to 2.5 km5.2% from 2.5 km to 2.5 km7.0% from 2.5 km to 2.5 km8.2% from 2.5 km to 2.5 km9.3% from 2.5 km to 2.5 km7.3% from 2.5 km to 2.5 km9.8% from 2.5 km to 2.6 km9.3% from 2.6 km to 2.6 km10.5% from 2.6 km to 2.6 km11.5% from 2.6 km to 2.6 km10.3% from 2.6 km to 2.6 km8.8% from 2.6 km to 2.6 km9.4% from 2.6 km to 2.6 km5.7% from 2.6 km to 2.6 km5.8% from 2.6 km to 2.6 km4.0% from 2.6 km to 2.6 km5.6% from 2.6 km to 2.6 km3.4% from 2.6 km to 2.6 km1.9% from 2.6 km to 2.6 km5.8% from 2.6 km to 2.6 km3.6% from 2.6 km to 2.6 km2.2% from 2.6 km to 2.6 km2.0% from 2.6 km to 2.6 km6.1% from 2.6 km to 2.6 km4.5% from 2.6 km to 2.7 km4.9% from 2.7 km to 2.7 km7.8% from 2.7 km to 2.7 km9.1% from 2.7 km to 2.7 km11.9% from 2.7 km to 2.7 km8.5% from 2.7 km to 2.7 km9.8% from 2.7 km to 2.7 km10.5% from 2.7 km to 2.7 km12.0% from 2.7 km to 2.7 km13.0% from 2.7 km to 2.7 km12.8% from 2.7 km to 2.7 km11.4% from 2.7 km to 2.7 km11.4% from 2.7 km to 2.7 km10.9% from 2.7 km to 2.7 km11.9% from 2.7 km to 2.7 km11.4% from 2.7 km to 2.7 km13.6% from 2.7 km to 2.7 km10.6% from 2.7 km to 2.7 km11.6% from 2.7 km to 2.7 km12.5% from 2.7 km to 2.7 km11.4% from 2.7 km to 2.7 km9.3% from 2.7 km to 2.7 km11.1% from 2.7 km to 2.7 km7.3% from 2.7 km to 2.8 km8.8% from 2.8 km to 2.8 km7.7% from 2.8 km to 2.8 km9.1% from 2.8 km to 2.8 km9.8% from 2.8 km to 2.8 km13.0% from 2.8 km to 2.8 km10.4% from 2.8 km to 2.8 km11.8% from 2.8 km to 2.8 km10.2% from 2.8 km to 2.8 km11.1% from 2.8 km to 2.8 km10.9% from 2.8 km to 2.8 km7.0% from 2.8 km to 2.8 km11.6% from 2.8 km to 2.8 km10.4% from 2.8 km to 2.8 km11.1% from 2.8 km to 2.8 km11.1% from 2.8 km to 2.8 km8.7% from 2.8 km to 2.8 km7.0% from 2.8 km to 2.8 km7.1% from 2.8 km to 2.8 km4.8% from 2.8 km to 2.8 km4.7% from 2.8 km to 2.8 km4.5% from 2.8 km to 2.8 km4.8% from 2.8 km to 2.9 km2.0% from 2.9 km to 2.9 km2.0% from 2.9 km to 2.9 km0.0% from 2.9 km to 2.9 km0.0% from 2.9 km to 2.9 km0.0% from 2.9 km to 2.9 km-4.5% from 2.9 km to 2.9 km-8.5% from 2.9 km to 2.9 km-11.1% from 2.9 km to 2.9 km-10.2% from 2.9 km to 2.9 km-8.9% from 2.9 km to 2.9 km-7.3% from 2.9 km to 2.9 km-9.3% from 2.9 km to 2.9 km-5.0% from 2.9 km to 2.9 km-4.9% from 2.9 km to 2.9 km-2.4% from 2.9 km to 2.9 km-2.4% from 2.9 km to 2.9 km-4.8% from 2.9 km to 2.9 km-3.7% from 2.9 km to 2.9 km-2.5% from 2.9 km to 2.9 km0.0% from 2.9 km to 2.9 km2.4% from 2.9 km to 2.9 km2.6% from 2.9 km to 3.0 km5.4% from 3.0 km to 3.0 km2.8% from 3.0 km to 3.0 km2.4% from 3.0 km to 3.0 km7.9% from 3.0 km to 3.0 km2.9% from 3.0 km to 3.0 km2.4% from 3.0 km to 3.0 km3.8% from 3.0 km to 3.0 km8.9% from 3.0 km to 3.0 km9.5% from 3.0 km to 3.0 km8.3% from 3.0 km to 3.0 km9.5% from 3.0 km to 3.0 km6.7% from 3.0 km to 3.0 km8.2% from 3.0 km to 3.0 km11.1% from 3.0 km to 3.0 km11.4% from 3.0 km to 3.0 km18.4% from 3.0 km to 3.0 km19.0% from 3.0 km to 3.0 km14.9% from 3.0 km to 3.0 km18.2% from 3.0 km to 3.0 km16.3% from 3.0 km to 3.0 km14.3% from 3.0 km to 3.0 km16.3% from 3.0 km to 3.0 km14.0% from 3.0 km to 3.0 km12.8% from 3.0 km to 3.1 km12.8% from 3.1 km to 3.1 km10.0% from 3.1 km to 3.1 km10.5% from 3.1 km to 3.1 km7.1% from 3.1 km to 3.1 km9.3% from 3.1 km to 3.1 km10.5% from 3.1 km to 3.1 km9.5% from 3.1 km to 3.1 km7.9% from 3.1 km to 3.1 km9.1% from 3.1 km to 3.1 km9.5% from 3.1 km to 3.1 km13.9% from 3.1 km to 3.1 km19.5% from 3.1 km to 3.1 km17.5% from 3.1 km to 3.1 km17.7% from 3.1 km to 3.1 km17.0% from 3.1 km to 3.1 km18.9% from 3.1 km to 3.1 km15.6% from 3.1 km to 3.1 km15.4% from 3.1 km to 3.1 km18.2% from 3.1 km to 3.1 km13.6% from 3.1 km to 3.1 km17.1% from 3.1 km to 3.1 km11.1% from 3.1 km to 3.1 km9.3% from 3.1 km to 3.1 km11.4% from 3.1 km to 3.2 km4.5% from 3.2 km to 3.2 km8.1% from 3.2 km to 3.2 km4.9% from 3.2 km to 3.2 km0.0% from 3.2 km to 3.2 km0.0% from 3.2 km to 3.2 km0.0% from 3.2 km to 3.2 km3.2% from 3.2 km to 3.2 km2.5% from 3.2 km to 3.2 km2.4% from 3.2 km to 3.2 km2.2% from 3.2 km to 3.2 km3.2% from 3.2 km to 3.2 km5.3% from 3.2 km to 3.2 km6.3% from 3.2 km to 3.2 km7.5% from 3.2 km to 3.2 km4.5% from 3.2 km to 3.2 km3.1% from 3.2 km to 3.2 km7.3% from 3.2 km to 3.2 km3.0% from 3.2 km to 3.2 km8.1% from 3.2 km to 3.2 km7.5% from 3.2 km to 3.2 km7.5% from 3.2 km to 3.2 km7.5% from 3.2 km to 3.2 km9.5% from 3.2 km to 3.2 km7.7% from 3.2 km to 3.2 km8.1% from 3.2 km to 3.3 km7.3% from 3.3 km to 3.3 km9.1% from 3.3 km to 3.3 km8.6% from 3.3 km to 3.3 km8.3% from 3.3 km to 3.3 km6.5% from 3.3 km to 3.3 km8.9% from 3.3 km to 3.3 km9.1% from 3.3 km to 3.3 km8.1% from 3.3 km to 3.3 km9.8% from 3.3 km to 3.3 km7.7% from 3.3 km to 3.3 km6.2% from 3.3 km to 3.3 km5.1% from 3.3 km to 3.3 km7.9% from 3.3 km to 3.3 km4.4% from 3.3 km to 3.3 km6.2% from 3.3 km to 3.3 km5.0% from 3.3 km to 3.3 km5.1% from 3.3 km to 3.3 km5.3% from 3.3 km to 3.3 km5.1% from 3.3 km to 3.3 km7.9% from 3.3 km to 3.3 km5.3% from 3.3 km to 3.3 km5.1% from 3.3 km to 3.3 km4%1%4%2%3%6%9%0 m500 m1 km1.5 km2 km2.5 km3 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
Distance3.34 km / 2.08 miles
Elevation gain128 m / 420 ft
Average gradient3.8%
Maximum gradient17.9%
Elevation high385 m / 1,263 ft
Elevation low257 m / 843 ft
Climb difficulty score12,799.09

Similar Climbs Nearby

If you like the shape of this climb, these nearby options have a similar distance, gradient, and elevation profile.

Tip: rotate your phone to landscape and swipe the table sideways to reveal the full set of climb details.

ClimbLengthGradientAscent
Col Panavare
Saint-Jean-en-Royans, Drôme
3.02 km4.6%139 m
St Jean-Rochechinard-La Motte
Saint-Jean-en-Royans, Drôme
3.82 km2.8%114 m
Le Grippa Et L'Hôte Climb
Saint-Jean-en-Royans, Drôme
2.51 km4.3%107 m
Climb to Motte Fanjas turn
Saint-Jean-en-Royans, Drôme
1.84 km4%73 m
Le TRD marmotte
Saint-Jean-en-Royans, Drôme
3.33 km8.5%282 m

Climb Rank

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

🗺

This climb ranks 417,639th out of 2,710,652 worldwide cycling climbs.

🧮

Ranked as the 51,192nd most difficult cycling climb of all 342,105 climbs in France.

📉

Places 20,135th out of 68,974 cycling climbs in Auvergne-Rhône-Alpes.

Ranks 1,172nd out of 4,377 cycling climbs in Drôme.

Ranking 23rd out of 38 cycling climbs in Saint-Jean-en-Royans.

Useful Links

View this climb on other sites.

Google Street View
Strava

Something wrong with this listing? Help keep BikeClimbs accurate.

Flag this climb