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  Specialized Sirrus Sport 2010
 		Surly Midnight Special 2019
  Specialized Sirrus Sport
2010: M
Surly Midnight Special
2019: 56cm
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Choose Baseline
Reach 428
Stack 571
Top Tube (effective) 518 521
Top Tube (actual) 463
Seat Tube C-T 470
Seat Tube C-C 499
Head Angle 82 77
Seat Angle 82 63
Head Tube 180 120
Chainstay 450 481
Wheelbase 953 842
Front Centre 534
Standover 910 802
BB Drop 73 56
Fork Rake / Offset 50 38
Trail 60
Fork Length (A2C) 348
Seatpost Length 344
Handlebar Width 705 424
Stem Length 92 92
Stem Angle 6
Crank Length 192 199
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  Specialized Sirrus Sport
2010: M 		Surly Midnight Special
2019: 56cm
Image showing geometry measurements

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