Dura Ace St-r9120 Funnel Adapter & O-ring
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Description
The Shimano Dura-Ace ST-R9120 Funnel Adapter and O-ring is a precision small part that keeps your top-tier hydraulic brake lever functioning correctly. Though compact, this component plays a critical role in maintaining a sealed, air-free hydraulic system — directly affecting braking feel, modulation, and safety on Indian roads. Cobbled Climbs is the authorised retailer for Time in India.
Use Cases
Daily training. Reliable use across Indian training conditions — heat, humidity, and rough tarmac.
Race day. Performance-grade construction for competitive efforts.
Long rides. Built for full-day rides across Western Ghats, Sahyadri, or Nilgiri climbs.
Our Take
On long descents through the Western Ghats or wet Pune-Mumbai Expressway rides during monsoon season, the integrity of your hydraulic brake system is non-negotiable. A worn or missing O-ring invites air into the system, leading to a spongy lever and unpredictable braking. This genuine Shimano spare restores your Dura-Ace lever to factory-standard performance quickly and affordably — smart preventive maintenance for serious road riders.
Sizing for Indian Riders
This part is specific to the Shimano Dura-Ace ST-R9120 hydraulic shift-brake lever. It is not a universal fitment. Before ordering, confirm your exact lever model. Indian riders dealing with high humidity in Chennai or Kolkata may find O-rings degrade faster than in drier climates — inspect seals periodically and replace proactively rather than waiting for brake feel to deteriorate.
Compatibility Notes
Compatible exclusively with the Shimano Dura-Ace ST-R9120 hydraulic STI lever. Use Shimano mineral oil only — never DOT fluid, which damages internal seals. Replace the O-ring any time you fully disassemble or bleed the lever. Pair with a proper Shimano bleed kit for a clean, professional result. Torque all fittings to Shimano's published specifications.
Pairs Well With
Complete your brake maintenance with a Shimano-compatible bleed kit and mineral oil, a quality torque wrench, Dura-Ace compatible brake hose and fittings, and Shimano-spec brake pads suited to your rotor type. A full service keeps your system performing at its best through Indian monsoon and heat.
Explore the full Shimano collection at Cobbled Climbs | Learn more at Shimano
Specifications
| Specification | Detail |
|---|---|
| Brand | Time |
| Product Type | Cycling Product |
| Shipped From | Mumbai, India |
Explore the full Time collection at Cobbled Climbs
Why buy from Cobbled Climbs
- 100% genuine — authorised Time retailer in India
- Free delivery on orders above Rs. 2,500
- Cash on delivery available nationwide
- 7-day easy returns
- Shipped from Mumbai
- Expert advice — built for Indian cycling conditions
Frequently Asked Questions
What is the Shimano Dura-Ace ST-R9120 Funnel Adapter and O-ring used for?
This small but critical spare is used during the bleeding process of the Dura-Ace ST-R9120 hydraulic STI lever. The funnel adapter directs mineral oil into the reservoir, while the O-ring seals the system to prevent air ingress and fluid leaks. Replacing a worn O-ring restores firm, consistent lever feel and reliable braking modulation.
What size or variant of this part should I order?
This part is designed specifically for the Shimano Dura-Ace ST-R9120 hydraulic STI lever — there is only one variant and no size selection needed. However, compatibility is model-specific. Verify your lever model number before purchasing. It will not fit Ultegra, 105, or other Dura-Ace lever variants outside the R9120 designation.
Will this O-ring hold up in India's monsoon humidity and 35°C+ heat?
Genuine Shimano O-rings are manufactured to withstand the operating temperatures and pressures of hydraulic brake systems. That said, high humidity in coastal cities like Chennai, Mumbai, and Kolkata can accelerate seal degradation over time. Inspect your lever's hydraulic seals periodically and replace proactively — this Rs. 110 part is far cheaper than a full lever replacement.
How does this compare to using a third-party O-ring from a hardware store?
Generic O-rings may not match Shimano's exact dimensions or material specification, risking poor seals, mineral oil leakage, or air entering the hydraulic circuit. A spongy or unresponsive brake lever on a Ghat descent is a serious safety risk. The genuine Shimano part at Rs. 110 ensures correct fitment and system integrity — it is not worth compromising on.
Is this part worth buying, and does it come with any warranty?
At Rs. 110, this is among the most cost-effective maintenance purchases for a Dura-Ace hydraulic setup. Replacing a worn O-ring can restore full braking performance without an expensive service visit. Shimano genuine spare parts are covered under Shimano's standard warranty policy. For warranty queries, contact the Cobbled Climbs team directly. Free delivery applies on orders above Rs. 2,500.
Why pay full price when loyalty pays back?
Club House rewards you for every purchase — up to 5% cashback, 100 bonus points to start, birthday rewards, and early access to limited drops. It’s our way of saying thanks for riding with us.
Shipping:
We ship all orders within 48 hours, excluding Sundays and public holidays. Delivery typically takes 3 to 5 days depending on your location.
Returns:
If your item arrives damaged, incorrect, or doesn’t fit, you may request a return within 7 days of delivery. Email us at support@cobbledclimbs.com with your order details. Items must be unused and returned in original packaging with all tags and labels intact.
Sale Item Guidelines:
Products purchased on sale are final sale and not eligible for return or exchange. Please double-check sizing, fit, and product details before purchasing.
Please note:
We follow a no money refund policy. Eligible returns are offered store credit or exchange only.
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Dura Ace St-r9120 Funnel Adapter & O-ring
Earn up to Rs. 5.50 cashback with Club House
Frequently Asked Questions
Does Cobbled Climbs ship Dura Ace St-r9120 Funnel Adapter & O-ring across India?
Is the Dura Ace St-r9120 Funnel Adapter & O-ring on Cobbled Climbs 100% authentic?
What is the return and exchange policy for Dura Ace St-r9120 Funnel Adapter & O-ring?
Is Dura Ace St-r9120 Funnel Adapter & O-ring currently in stock?
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Does Dura Ace St-r9120 Funnel Adapter & O-ring come with a manufacturer warranty?
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What We Reach For
When the ride calls, we don’t think twice. A jersey that’s made to move. A computer that knows the way. A care kit that keeps it all running smooth. These are the pieces we reach for — ride after ride.
