Product Description The Profile Design Tri stem for various types of internal cable routing The Tri stem from Profile Design is designed for road bikes with internal cable routing and cable entry through the headset or the top tube. Its front cap also allows compatible hydration systems to be fitted. The stem is made of aluminium and has a negative angle of 17.5 degrees. With a 1 1/8" steerer and 31.8 mm handlebar clamp, it is suitable for standard setups. Specifications:Application:Road, Triathlon & Time TrialDesign:AheadSteerer Clamp:1 1/8"Stack Height (steerer tube):37 mmHandlebar Clamp:31.8 mmClamping Width (handlebars):40 mmLengths:80 mm, 105 mmAngle:-17.5°Technical Information:Material:aluminium (6061-T6)Features:road bike stem designed for internal cable routingHSF front plate for mounting compatible drinking systemstop tube or headset cable entry possible31.8 mm clamp for standard handlebarsfor a clean, uncomplicated cockpitmade from 3D-forged aluminiummatt black finish with black accentsManufacturer Numbers:80 mm -17.5°:RST1758081105 mm -17.5°:RST1751081Contents:1 x Profile Design Tri stemOrder Together:Optional accessories: Aeria hydration system Weight: black | -18° | 80 mm: 225 g Manufacturer: Profile Design LLC 2677 Waiwai Loop Honolulu HI 96819 USA info@profile-design.com Distributor: GROFA Action Sports GmbH Otto-Hahn-Straße 17 65520 Bad Camberg Germany info@grofa.com