S-WORKS Specialized Shiv TT, Instruction Manual

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GEOMETRY
Due to the innovative design of the Specialized Shiv TT, the parameters that a bike fitter uses to match a bike to a rider’s body are adjusted in different
ways than on a traditional TT/Tri bike.
There are three key changes from a traditional TT bike fit that make the Shiv TT unique compared to a typical bike when deciding a rider’s frame size:
1. The 5 different frame sizes increase only in Reach (or the horizontal length from the BB to the center of the HT) -- the lowest Stack (the vertical
dimension from BB to the center-top of the HT) is fixed for all sizes.
„ You chose bike size based upon reach and can micro adjust stack up from this lowest position to match the rider’s preferred aerobar placement.
2. The Stack of the aerobar extensions is adjustable (115mm of vertical adjustment) and moves vertically – NOT in-line with the steer tube as on a
traditional front end. For example:
„ On a Transition, if you add a 10mm spacer to the steerer tube at 73 degrees, you’ve increased the vertical stack of the bar 9.5mm and shortened
the reach 3mm.
„
On a Shiv TT, if you add a 10mm spacer, you have increased the vertical stack 10mm and the reach is still the same.
3. There is only one “stem” length and angle for all sizes of bike: 75mm, -18 degree.
„ This fixes the basebar to one position that is non-adjustable for each frame size.
„
Aerobar pads and extensions can be raised up from here (up to 115mm vertically).
„
Flipping the aerobar pads gives 22mm of reach adjustment.
Please review the attached geo chart for detailed bike measurements.
It is highly recommended that you fit a prospective Shiv TT rider on a fit cycle or a Transition before ordering a Shiv TT size. Once a rider is fit,
measuring effective reach from BB to center of aerobar pad will dictate which size bike the rider needs.
The sizes are denoted by their effective reach to the center of the aerobar pad: 450mm, 465 mm, 480 mm, 495 mm, and 515 mm. Additionally, TT
length is supplied in the geo chart for those who use this parameter.