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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 496 517 424 535 422 452 365 496 528 479
Stack 514 703 610 537 581 602 667 607 615 669
Top Tube (effective) 753 637 513 704 522 678 507 664 697 704
Top Tube (actual) 554 721 583 520 684 505
Seat Tube C-T 453 442 456 464 409 534 446 620 524 576
Head Angle 80 71 70 86 69 83 83 58 79 56
Seat Angle 88 71 58 83 72 76 75 58 63 85
Head Tube 148 126 110 178 172 154 114 135 187 206
Chainstay 478 434 367 495 429 422 379 374 356 472
Wheelbase 1144 1108 1220 962 934 921 1297 1345 953 932
Front Centre 659 942 632 722
Standover 844 665 966 945 917 711 742 959
BB Drop 66 62 57 70 58 66 50 51 50 57
BB Height 332 319
BB Type BSA 73mm BSA 73mm
Fork Rake / Offset 51 49 41 42 34 40 47 46 46 56
Fork Length (A2C) 397 526 387 427 447 458 446 525 407mm 407mm
Seatpost Diameter 32 30 31.6mm 31.6mm
Wheel Size 650b 650b
Tyre Max Width 58mm 58mm
Handlebar Width 626 768
Stem Length 92 94 90 89
Stem Angle 5 5 6 4
Crank Length 149 151 175 142
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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