This MagCAD Top Bearing Cover has a height of 10.9mm. With the Specialized Tarmac SL7 stem having a clamp height of 31mm this makes for a total stack height of 41.9mm. Compared with the following OEM Venge parts; top bearing cover (11.9mm), top spacer (5.3mm) and the alloy stem (34mm), which make up the lowest headset setup with OEM parts, the MagCAD Top Bearing Cover reduces your handlebar height by 9.3mm.
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