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Leisure Lakes Bikes£184.99Visit shop Shimano ST-R7025 105 Double Hydraulic/Mechanical STI Lever Black
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The Shimano 105 ST-R7025 STI Lever is designed specifically for cyclists with smaller hands who prioritize ergonomic comfort without sacrificing performance. This dual-control lever integrates precise 11-speed mechanical shifting with powerful hydraulic disc braking in a compact package. While it offers superior reach adjustability and refined ergonomics, users should note that it requires a dedicated hydraulic disc brake setup and is compatible specifically with Shimano's 11-speed mechanical road drivetrain components.
| Model Part Number | STR7025RL |
|---|---|
| Brand | Shimano |
No, these are strictly hydraulic levers designed for disc brake systems.
Absolutely not. You must use Shimano mineral oil to prevent permanent damage to the lever internals.
The levers feature a 10 mm reach adjustment range to accommodate various hand sizes.
Yes, the unit comes with Optislick coated cables and the necessary outer casing.
No, this specific model is designed for 11-speed mechanical road drivetrains.
Air is likely trapped in the system; perform a full hydraulic system bleed according to Shimano service instructions.
Check the cable housing for tight bends and ensure the Optislick cable is free of debris. Replace cables if fraying is present.
Use a 2mm or 2.5mm hex key (depending on model year/version) on the reach adjustment screw located behind the lever blade to fine-tune the distance.
Installation requires standard road bike mounting techniques, but the hydraulic system necessitates specific care. The levers are compatible with Shimano mineral oil only—do not use DOT fluid, as this will damage the internal seals.
For optimal performance, ensure that the hydraulic hoses are routed cleanly to avoid sharp bends that might restrict fluid flow. When performing maintenance, use a standard bleed kit designed for Shimano road hydraulics. The Optislick cables should be kept clean, and while the factory silicon-greased housing reduces the need for frequent lubrication, inspect the cable ends during annual service for signs of fraying or wear.
