Prologo Dimension Tri Triathlon Nack Grey/Black 245mmx143mm 181g Length-290 dished towards the frame) is

dished towards the frame) is for 52mm chainline for Boost bikes

Model Cadet Length 170mm Direct Mount/BCD 3-Bolt Configuration 1x Spindle Interface Praxis M30/28 BB Shell Width 68/73mm Chainline 49/52/55mm Material Aluminum Color Black

Perforated upper for the utmost ventilation

Model Klic HV Guage Barrel Material Aluminum Head Presta/Schrader Max Psi 110 Length 260mm Color Midnight Black

Prologo Dimension Tri Triathlon Nack Grey/Black 245mmx143mm 181g Length-290 dished towards the frame) isNew V Shape base paired with a wider tip and larger seating area improve comfort and overall performance. Variable density foams throughout further improve long term comfort and reduce pressure especially while in an aerodynamic position. PAS features a channel in the seat to alleviate pressure and numbness in the pelvic region by promoting healthy perineal blood flow. Nack models feature a Nano Carbon composite rail paired with reinforced seat clamp