Pro Tharsis XC 17 Degree Stem in Black
The new tharsis XC stem is the next evolution of headset design
Specification:
- unique pinch bolt design with headset preload ring enable the headset to be adjusted without the need for a top cap or star nut leaving the fork steerer tube free to take an internal Di2 battery or simply as a method to save weight over a traditional system
- the stem has been designed to take an sm-jc41 Di2 junction box internally and is machined to allow cables to enter the front of the stem under the handlebar clamp
- extra wide bar clamp for additional stiffness
- available in -6 and -17 degree versions to suit 1-1/8? Steerer tubes
- weight: 145g (100mm)
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Product Information
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Shipping & Returns

Pro Tharsis XC 17 Degree Stem in Black
Pro Tharsis XC 17 Degree Stem in Black
The new tharsis XC stem is the next evolution of headset design
Specification:
- unique pinch bolt design with headset preload ring enable the headset to be adjusted without the need for a top cap or star nut leaving the fork steerer tube free to take an internal Di2 battery or simply as a method to save weight over a traditional system
- the stem has been designed to take an sm-jc41 Di2 junction box internally and is machined to allow cables to enter the front of the stem under the handlebar clamp
- extra wide bar clamp for additional stiffness
- available in -6 and -17 degree versions to suit 1-1/8? Steerer tubes
- weight: 145g (100mm)
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The new tharsis XC stem is the next evolution of headset design
Specification:
- unique pinch bolt design with headset preload ring enable the headset to be adjusted without the need for a top cap or star nut leaving the fork steerer tube free to take an internal Di2 battery or simply as a method to save weight over a traditional system
- the stem has been designed to take an sm-jc41 Di2 junction box internally and is machined to allow cables to enter the front of the stem under the handlebar clamp
- extra wide bar clamp for additional stiffness
- available in -6 and -17 degree versions to suit 1-1/8? Steerer tubes
- weight: 145g (100mm)











