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  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 510 598 379 383 383 379 349 455 425 449
Stack 678 642 512 676 621 611 583 589 474 620
Top Tube (effective) 653 679 577 628 644 755 502 540 567 651
Top Tube (actual) 467 629 597 603 517 646
Seat Tube C-T 409 526 593 615 493 552 550 596 473 491
Head Angle 55 75 74 82 64 79 56 81 63 70
Seat Angle 61 64 68 72 64 78 86 65 85 69
Head Tube 124 145 134 169 120 140 92 145 147 175
Chainstay 368 417 384 483 357 373 400 406 401 391
Wheelbase 1119 1309 936 957 1007 1218 992 1173 1197 1057
Front Centre 811 748 689 698
Standover 769 770 788 1028 758 790 813 1003
BB Drop 73 62 57 62 60 67 63 54 61 59
BB Height 258 367
BB Type BSA 73mm BSA 73mm
Fork Rake / Offset 54 53 43 42 34 35 43 42 43 48
Fork Length (A2C) 496 385 488 421 407 358 455 554 407mm 407mm
Seatpost Diameter 35 32 31.6mm 31.6mm
Wheel Size 650b 650b
Tyre Max Width 58mm 58mm
Handlebar Width 617 765
Stem Length 73 88 96 114
Stem Angle 6 5 6 7
Crank Length 198 164 209 167
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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