Adjustable Aluminium Stem Riser

This bicycle fork stem extender is crafted from forged aluminium alloy—robust, lightweight, corrosion-resistant and built to maintain shape and strength over time. It features five 10mm spacers, stacking to deliver a maximum vertical lift of 100mm. The modular spacer system allows fine-tuned height adjustment to match individual rider proportions and riding style. Compatible with all standard 1-1/8 inch (28.6mm) threadless steerer tubes, it suits mountain bikes, road bikes and hybrid MTBs alike. Installation requires no disassembly beyond standard stem removal—just re-stack and re-torque using factory-specified settings.