When will I receive my order?
Parts & Accessories orders that are placed before 1 pm are estimated to be delivered the next working day. More delivery info here.
For example, if you place an order before 1 pm on Wednesday, we'll aim to get this out that same day for estimated delivery on Thursday.
If, for example, you place your order after 1 pm on a Friday, or at the weekend, we'll aim to dispatch on Monday for estimated delivery on Tuesday.
Do you deliver outside of the UK?
We deliver to over 150 countries worldwide. Please add any items you require to the basket; the shipping to your destination is calculated at the checkout.
You can learn more about delivery information here. We have a separate page with estimated international delivery times.
Due to restrictions, there are some items we can't deliver internationally (battery packs and aerosols). These items are clearly stated on each product page.
Why can't I purchase some items?
Some certain products we hold exclusively to support our bike customers (those who purchase their bike directly from us).
When you purchase your bike directly from us, your account is unlocked for quick access to order these spares, should you need them.
Purchased from us, but don't see the option to 'Add to Cart'? Please get in touch and our team will be able to assist.
Description
The Shimano RT-EM300M is a 180mm Center Lock disc brake rotor optimized for e-bikes, typically used on the rear wheel. Its key feature is an integrated magnet that interfaces directly with the Shimano STEPS speed sensor (e.g., SM-DUE11) for reliable speed data and accurate electric assist. It delivers consistent stopping power and is only compatible with resin brake pads.
Please Note: Rear wheel use only
Included:
- Shimano RT-EM300M 180mm brake rear brake rotor
- Internal/External lock ring
- Speed sensor magnet
Next business day UK mainland delivery on parts & accessories
NEXT DAY DELIVERY
Parts & accessories ordered with a bike will arrive fitted where possible
WE FIT PARTS
Parts & accessories dispatched same day if ordered before 1pm
SAME DAY DISPATCH
We deliver electric bike accessories to over 150 countries worldwide
WORLDWIDE DELIVERY