TREK Rail+ 8 Gen 5 2025


c

Geometry

  15.5" 15.5" M - 17.5" (High - Geometry position) 17.5" 19.5" 19.5" XL - 21.5" (High - Geometry position) 21.5"
To view geometry data you must use a web browser that supports JavaScript. See: browser-update.org
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Reach 40 49 38 44 45 57 55 49
Stack 63 52 72 63 64 69 61 63
Top Tube (effective) 53 55 66 59 74 59 73 79
Seat Tube C-T S S M M L L XL XL
Seat Tube C-C 40 39 46 38 35 40 55 54
Seat Tube (effective) 71 86
Head Angle 75 54 69 69 67 63 62 73
Seat Angle 70 91 64 76 64 76 78 74
Head Tube 9 11 10 8 10 11 14 15
Chainstay 40 49 50 45 53 45 37 41
Wheelbase 117 137 100 127 114 146 136 129
Standover 72 86 79 88 90 87 83 75
BB Drop 1 2 1 2 2 1 2 1
BB Height 33 29 36 37 28 38 36 35
Wheel Size 27.5" 27.5" 29"/27.5" 29"/27.5" 29"/27.5" 29"/27.5" 29"/27.5" 29"/27.5"
Seatpost Offset 3 4 3 3 4 4 3 3
Rear Travel 11 10 14 14 14 14 11 12
Data Source None None Manufacturer None None None Manufacturer None

Standard measurements are in millimeters and degrees. The site attempts to recognize and convert other units back to standard - results may vary.

Image showing geometry measurements

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