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The upper guide is the top arm of the MRP G3 chainguide system. It sits above the chainring and holds the chain against the top of the guide, keeping the chain from jumping off on rough or technical terrain. The nylon body contacts the chain directly and takes repeated impact over time, so cracking or heavy wear to the guide face are the most common reasons to replace it. This listing is for the guide head only, hardware not included. If you also need the bolt and slider nut, those are sold separately by MRP as the Upper Guide Hardware kit.
MRP's own replacement guide page confirms that the G3, TR, HD, and HD2 upper guides all share the same mounting style and are interchangeable. The G3 upper guide is also cross-compatible with the G4, G5, SXg, AMg V1 and V2, and 1x V2 and V3 chainguide models. Because fitment can depend on which generation of mount you have, confirm your specific chainguide model before ordering. If you are unsure, check MRP's website or contact their support team directly.
This is a direct OEM-style replacement from MRP, so you are getting the correct part for the G3 system rather than a workaround. The nylon construction is the same glass-filled material used in the original guide, which holds up well to repeated chain contact and resists degradation from chain lube. Ordering this gets your chainguide back to full function without replacing the entire assembly.
Our returns policy lasts 30 days. If more than 30 days have passed since your purchase, we're unable to offer a refund or exchange. Apparel and shoes are not eligible for return once they have been shipped out.
We accept returns if the item is eligible for a warranty claim or if the wrong item was shipped to you. To be eligible, your item must be unused, in the same condition you received it, and in its original packaging. A receipt or proof of purchase is required.
Please do not send your purchase back to the manufacturer. Once your return is received and inspected, we'll email you to confirm.
Only regular-priced items can be refunded. Sale items cannot be refunded.
We replace items only if they are defective or damaged. To exchange an item for the same one, email us at info@reevolution.sg and send the item to 16 Morse Road, #01-209, Singapore 099228.
You are responsible for the cost of return shipping, and shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from it. For valuable items, we recommend a trackable shipping service or shipping insurance, as we can't be responsible for returns we don't receive.
Once your return is received, inspected and approved, your refund will be processed to your credit card or original method of payment. A refund will also be issued if an item turns out to be out of stock after your order is placed. How long it takes to appear depends on your bank or card provider.
If you haven't received your refund yet:
If you've done all of this and still haven't received your refund, please get in touch.
Free standard delivery on orders SGD 80 and above within Singapore.
| Delivery option | Orders below SGD 80 | SGD 80 and above | Delivery time |
|---|---|---|---|
| In-store pickup | Free | Free | Collect in store |
| Standard delivery | SGD 5 | Free | 4–7 working days |
| Express delivery | SGD 20 | SGD 20 | Next working day |
Collect your order from our store at 16 Morse Road, #01-209, Singapore 099228.
Monday to Friday: 11.30am – 7pm
Saturday: 11.30am – 6pm
We ship overseas on request. Contact us with your address and the items you'd like, and we'll send you a shipping quote.
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