The Brandtal Oversized Pulley System from Alpitude replaces the stock derailleur cage with a full carbon 14–17T oversized design.
The larger pulley configuration increases chain wrap and reduces articulation resistance at the derailleur, allowing the drivetrain to run smoother under load. Hybrid ceramic bearings minimise internal drag while maintaining precise, consistent shifting.
This upgrade improves drivetrain efficiency and delivers a smoother, more refined feel when you are putting power through the pedals.
Specifications
14–17T oversized pulley design
Handmade carbon fibre Y cage
Hybrid ceramic bearings
Weight:
Shimano 12-speed: 69g
SRAM AXS 12-speed: 75g
Compatibility
Shimano 12-speed Di2
Compatible with Dura-Ace and Ultegra 12-speed Di2 groupsets.
SRAM AXS 12-speed
Compatible with SRAM 12-speed AXS road groupsets.
Suitable for road bikes running the compatible groupset above. If unsure, confirm your bike and groupset before ordering.
Pulley Wheel Colours
Black
Gun Metal
Gold
Turquoise
Select your colour at purchase. Pulley wheels can be replaced later if you want to change the look of your bike.
Estimated shipping: approximately 2 working weeks from order.
Which version do I need?
Choose Shimano if you are running 12-speed Di2. Choose SRAM if you are running a 12-speed AXS road groupset.
Does this improve shifting?
When installed and indexed correctly, shifting remains precise. Professional installation is recommended.
Do I need a longer chain?
In most cases no, however this depends on cassette size and existing chain length. Your mechanic can confirm during installation.
What is the lead time?
Estimated shipping is approximately 2 working weeks from the date of order.