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  Polygon Bikes Siskiu T8 2021
 		Giant Trance 27.5 2020
  Polygon Bikes Siskiu T8
2021: M (27.5″)
Giant Trance 27.5
2020: M
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Reach 457 454
Stack 588 614
Top Tube (effective) 688 709
Seat Tube C-T 416 460
Head Angle 55 62
Seat Angle 78 82
Head Tube 105 103
Chainstay 433 401
Wheelbase 965 1126
Standover 628 835
BB Drop 20 12
BB Height 352
Fork Rake / Offset 40
Trail 106
Seatpost Diameter 32
Wheel Size 30
Handlebar Width 706
Stem Length 53
Crank Length 141 208
Front Travel 151 173
Rear Travel 162 161
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  Polygon Bikes Siskiu T8
2021: M (27.5″) 		Giant Trance 27.5
2020: M
Image showing geometry measurements

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