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2026 BMC Kaius vs 2026 Ridley ASTR

Bicycle geometry comparison powered by RideDNA

BMC Kaius

2026 · Gravel

Size Reach Stack Trail HTA Chainstay BB Drop Wheelbase Front center Max Tire
47 390 510 68 71.0 412 80 1003 596 44
51 397 530 68 71.0 412 80 1017 610 44
54 401 551 67 72.0 412 80 1013 606 44
56 404 571 67 72.0 412 80 1024 617 44
58 410 596 67 72.0 412 80 1037 630 44
61 414 621 67 72.0 412 80 1050 642 44

All measurements in millimeters (mm) and degrees (°).

vs

Ridley ASTR

2026 · Gravel

Size Reach Stack Trail HTA Chainstay BB Drop Wheelbase Front center Max Tire
L 420 595 68 71.5 418 75 1064 650 52
M 406 571 68 71.5 418 75 1043 629 52
S 392 550 71 71.0 418 75 1027 613 52
XL 432 619 68 71.5 418 75 1085 671 52
XS 376 536 71 71.0 418 75 1006 593 52

All measurements in millimeters (mm) and degrees (°).

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