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Compare Bikes




  Kona Unit X 2020
 		Kona Unit X 2020
 		Surly Ogre 2020
 		Surly Ogre 2020
 		No image available for this bike.
 		No image available for this bike.
 		Brother Big Bro 2021
 		Brother Big Bro 2021
 		On-One Bootzipper 650b 2019
 		On-One Bootzipper 650b 2019
  Kona Unit X
2020: L
Kona Unit X
2020: XL
Surly Ogre
2020: LG
Surly Ogre
2020: XL
Surly Bridge Club
2018: LG
Surly Bridge Club
2018: XL
Brother Big Bro
2021: Large (20)
Brother Big Bro
2021: xLarge (22)
On-One Bootzipper 650b
2019: LRG
On-One Bootzipper 650b
2019: XLG
To view geometry data you must use a web browser that supports JavaScript. See: browser-update.org
Choose Baseline
Reach 534 607 429 453 396 494 385 517 388 563
Stack 668 540 684 719 643 668 524 713 610 600
Top Tube (effective) 581 796 642 560 571 554 624 627 567 568
Top Tube (actual) 597 616 701 566 494 617
Seat Tube C-T 378 571 521 620 520 480 580 663 438 558
Head Angle 56 78 68 66 79 78 74 63 71 75
Seat Angle 76 79 63 61 63 72 84 61 71 77
Head Tube 126 143 135 125 164 184 100 134 143 184
Chainstay 354 357 433 418 498 484 464 361 396 430
Wheelbase 1396 1016 1154 1225 1185 1308 903 1016 1330 1179
Front Centre 851 867 727 793
Standover 779 805 889 703 837 965 825 906
BB Drop 57 66 54 66 50 67 48 71 47 58
BB Height 298 355
BB Type BSA 73mm BSA 73mm
Fork Rake / Offset 53 47 49 38 40 44 52 54 41 56
Fork Length (A2C) 527 456 408 438 404 349 474 472 407mm 407mm
Seatpost Diameter 31 27 31.6mm 31.6mm
Wheel Size 650b 650b
Tyre Max Width 58mm 58mm
Handlebar Width 713 667
Stem Length 101 116 97 87
Stem Angle 5 6 5 6
Crank Length 198 171 203 153
Headset 44mm 44mm
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  Kona Unit X
2020: L 		Kona Unit X
2020: XL 		Surly Ogre
2020: LG 		Surly Ogre
2020: XL 		Surly Bridge Club
2018: LG 		Surly Bridge Club
2018: XL 		Brother Big Bro
2021: Large (20) 		Brother Big Bro
2021: xLarge (22) 		On-One Bootzipper 650b
2019: LRG 		On-One Bootzipper 650b
2019: XLG
Image showing geometry measurements

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