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No Hassle Returns
With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.
Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!
With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.
So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.
Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.
The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.
Call us if it's a bike as we can help arrange collection. Tel 01752 849315 or info@certini.co.ukPlease fill in the downloadable returns form to complete and return with your goods.CLICK HERE TO DOWNLOAD THE RETURNS FORMReturns Address:
Brand:Shimano
Code:Y3JS98010
The Shimano GRX RD-RX825/RX820 Rear Derailleur Pulley Set is a genuine replacement for smooth shifting.
Maintain optimal shifting performance on your gravel bike with the Shimano GRX RD-RX825/RX820 Rear Derailleur Pulley Set. Designed as a genuine Shimano replacement part, this set includes two high-quality pulley wheels engineered for smooth, precise gear changes in all riding conditions.
Shimano GRX – The First Dedicated Gravel Groupset
Shimano GRX is built for gravel riders of all levels, delivering smooth shifting, reliable braking, and all-day comfort on rough terrain. Whether you're a gravel racing enthusiast or an adventure seeker, Shimano GRX ensures exceptional performance on every ride.
Keep your Shimano GRX rear derailleur running like new with the Shimano GRX RD-RX825/RX820 Rear Derailleur Pulley Set because precision matters on every gravel ride.
General Unisex Brand Information