Can this be used on a rockshox monarch debonair?

I don't think so, page 33 of the SRAM service guide states you can use 15W oil around the top of the air can as a lubricant, but recommends using 3WT or 7WT in the service. Perhaps ask the guys at TF Tuned, they're normally very knowledgeable and get back to pretty quickly. http://www.tftuned.com/contact-us

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Rock Shox 11.4315.021.040 15WT Suspension Oil - 120 ml, Grey | bike-oils

Product ID: 48520257

Details

Brand
Rock Shox
Item weight
113 Grams
Liquid volume
120 Fluid
Material
Plastic
Package information
Bottle

⚙️15WT viscosity for optimal suspension performance

🛢️120 ml precision bottle for easy application

🚴‍♂️Specifically engineered for RockShox forks

$26.07

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Description

⚙️ Elevate your ride with RockShox’s precision suspension oil – because every trail deserves perfection.

COMPACT 120 ML BOTTLE - Perfectly sized for on-the-go maintenance without bulk or waste.
LONG LASTING PROTECTION - Formulated to maintain fork integrity and reduce wear over time.
ROCK SHOX CERTIFIED QUALITY - Official OEM oil trusted by pros for peak suspension performance.
PRECISION TUNED SUSPENSION OIL - 15WT viscosity ensures smooth, responsive fork action for every trail.
EASY APPLICATION COMPATIBILITY - Works seamlessly with front suspension forks; backed by detailed manuals and service videos.

RockShox 15WT Suspension Oil (120 ml) is a premium, OEM-certified lubricant designed specifically for front suspension forks. Its 15 weight viscosity optimizes fork responsiveness and durability, packaged in a convenient bottle for precise application. Trusted by cycling professionals and backed by manufacturer support, it ensures your suspension performs at its best on every ride.

Specifications

ASIN	B005543YIQ
Best Sellers Rank	43,400 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 77 in Bike Oils 2,942 in Bike Components & Parts
Brand	Rock Shox
Brand Name	Rock Shox
Container Type	Bottle
Customer Reviews	4.7 out of 5 stars 1,243 Reviews
Global Trade Identification Number	00710845655197
Included Components	Suspension Oil and Lube
Item Form	Oil
Item Type Name	SUS OIL 15WT 120ML NEW
Liquid Volume	120 Millilitres
Liquid volume	120 Millilitres
Manufacturer	ROCKSHOX
Material	Plastic
Model Number	11.4315.021.040
Number of Items	1
Package information	Bottle
Part Number	PS4315021040
Product Warranty	2 year manufacturer
Recommended Uses For Product	Suspension Oil
Recommended uses for product	Suspension Oil
SAE J300 Viscosity Grade	15W
Specific Uses For Product	cycling
UPC	744288815450 710845655197
Unit Count	120.0 millilitre
Viscosity	15

Reviews

D**E

On time

Quality stuff

17.02.2026

A**Y

Good official product

Cheapest I could find, I bought for rockshox forks so can’t go wrong

30.06.2025

S**E

It's oily - it does what it's supposed to perfectly

I actually got this as an alternative to forkboost for lubing the stanchions on my cheap air fork. For this purpose I'd get a lighter weight oil next time but for what this is and the price of it I can't complain. I would imagine it's perfect for it's intended purpose of going inside the fork instead of external lubing like I'm using it. 5/5 good quality suspension oil - maybe get something lighter or less viscous for oiling stanchions

25.06.2025

A**E

Good

Does the job well.

20.04.2023

D**T

Good stuff

I've got Rock Shox suspension on my bike. Needed oil so bought this.... Its not rocket science folks. 😁

16.08.2021

D**E

great for foam wipers on my XC30 26" forks

a very slippy oil for soaking the foam wipers in a rockshox XC30 26" fork , couple this with the sram butter and you cant go wrong

26.04.2018

R**Y

Oil

Little overpriced, but what to do...

8.12.2021

G**E

very happy indeed!

Cheaper than any bike shops, official product, very happy indeed!

24.04.2016

P**C

Livraison trop long

Bon produit

9.12.2020

F**A

Packing

The packing not very great as box quite big for a small item...bubble wipe and inside carton box very loose...I touch the bottle a bit of oil leak dual of poor packing causing....For my country this type packing is not acceptable....lousy or so call lazy pack..

22.08.2024

ナ**ツ

問題なく使えます

特にししょなく使えてます

6.12.2025

M**N

👍 great oil🛢 for fork suspension

👍 great oil for fork suspension Roch shox products are excellent. Recommended 100%

3.04.2025

G**S

Recomendo

Rápida entrega e produto corresponde ao pedido.

19.03.2026

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$26.07

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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