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  Kona Unit X 2020
 		Kona Unit X 2020
 		No image available for this bike.
 		No image available for this bike.
 		Brother Big Bro 2021
 		Brother Big Bro 2021
 		No image available for this bike.
 		No image available for this bike.
  Kona Unit X
2020: L
Kona Unit X
2020: XL
Surly Bridge Club
2018: LG
Surly Bridge Club
2018: XL
Brother Big Bro
2021: Large (20)
Brother Big Bro
2021: xLarge (22)
Velo Orange Piolet
2018: L
Velo Orange Piolet
2018: XL
To view geometry data you must use a web browser that supports JavaScript. See: browser-update.org
Choose Baseline
Reach 437 413 506 475 367 416 361 472
Stack 640 596 488 646 707 638 729 520
Top Tube (effective) 729 654 648 707 513 637 588 637
Top Tube (actual) 541 514 524 603
Seat Tube C-T 436 480 576 634 436 542 444 540
Seat Tube (effective) 684 672
Head Angle 68 75 69 84 68 76 77 71
Seat Angle 86 67 64 75 66 81 61 67
Head Tube 106 135 116 145 121 145 146 175
Chainstay 509 464 382 476 389 458 513 383
Wheelbase 1158 1244 1086 924 1206 1199 933 1162
Front Centre 646 752
Standover 888 913 859 922 707 992 839 688
BB Drop 61 58 67 66 49 50 59 74
BB Height 310 358
Fork Rake / Offset 53 59 43 46 39 37 68 75
Fork Length (A2C) 439 447 377 431 424 390
Seatpost Diameter 35 31
Wheel Size 29x2.4 29x2.4
Stem Length 90 88
Stem Angle 5 6
Crank Length 154 160
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  Kona Unit X
2020: L 		Kona Unit X
2020: XL 		Surly Bridge Club
2018: LG 		Surly Bridge Club
2018: XL 		Brother Big Bro
2021: Large (20) 		Brother Big Bro
2021: xLarge (22) 		Velo Orange Piolet
2018: L 		Velo Orange Piolet
2018: XL
Image showing geometry measurements

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