The Shimano FD-5700 [paid link] front derailleur is part of the 105 10-speed groupset and is designed for precise shifting across compact and standard double chainring setups. While it delivers reliable performance when installed and adjusted correctly, riders often encounter common issues that lead to poor shifting. This troubleshooting guide explains the causes of these problems and provides clear, step-by-step solutions to restore smooth operation.
Tools Required
- 5 mm hex key
- 2 mm and 3 mm hex keys [paid link] (for limit screws)
- Torque wrench [paid link] (recommended)
- Cable cutters
- Phillips screwdriver
- Chain checker or ruler
Cable Tension Problems
Cable tension is one of the most frequent causes of poor front shifting. If the derailleur does not move the chain onto the large chainring smoothly, the tension is likely too low. Conversely, if the derailleur overshifts and throws the chain past the big ring, the tension may be excessive.
To fix this, first check that the inner cable is not frayed or corroded. Replace it if needed. Then, release cable tension by shifting to the small chainring and loosening the pinch bolt. Pull the cable tight by hand before re-tightening. Fine-tune using the barrel adjuster on the downtube or inline adjuster. A quarter-turn at a time can make a significant difference.
Incorrect Limit Screw Adjustment
The FD-5700 [paid link] derailleur uses two limit screws to define the inner and outer movement of the cage. If these screws are not set correctly, the chain may drop off the rings or fail to shift entirely.
The low limit screw controls the inward travel toward the small chainring. If the chain rubs the derailleur cage in the lowest gear, the screw is set too loose. Tighten it slightly to prevent the chain from dropping.
The high limit screw manages outward travel toward the big chainring. If the chain struggles to shift to the big ring, back the screw out slightly. If the chain overshoots, tighten it to restrict movement.
Proper limit screw adjustment requires precise alignment. Always check with the chain under pedaling load, not just by manually shifting the derailleur.
Derailleur Height and Angle
If the FD-5700 [paid link] is mounted too high above the big chainring, shifting will feel sluggish and incomplete. Shimano specifies a clearance of 1–3 mm between the cage and the teeth of the large ring. Use a ruler or feeler gauge to confirm this spacing.
Cage angle is equally important. The outer plate of the derailleur cage should run parallel to the chainrings. If the derailleur is rotated inward or outward, chain rub and inconsistent shifts will occur. Loosen the clamp bolt, adjust the angle, and retighten with a torque wrench [paid link] to 5–7 Nm.
Chainline and Wear Issues
A misaligned chainline can also create shifting difficulties. The FD-5700 is designed for a 43.5 mm chainline, typically achieved with Hollowtech II bottom brackets. If the crankset or bottom bracket is incompatible, the derailleur will struggle to guide the chain correctly.
Chain wear is another common factor. A stretched chain does not engage the chainrings properly, leading to noisy or hesitant shifts. Use a chain checker to measure elongation. Replace the chain if wear exceeds 0.75%. Inspect the chainrings as well—shark-tooth-shaped teeth or burrs will require replacement.
Cable Routing Errors
The FD-5700 uses bottom-pull cable routing. If the cable is routed incorrectly or not seated properly in the derailleur’s guide, tension will not transfer effectively. Double-check the housing length to ensure smooth bends without sharp angles. Lubricate the cable with a light grease before reassembly to reduce friction and improve response.
Crank and Chainring Compatibility
The Shimano FD-5700 is designed for both compact (50-34T) and standard (53-39T) double chainring setups. However, mismatching it with chainrings outside its intended range can cause poor performance. For example, using oversized aftermarket rings may exceed the derailleur’s capacity. Always confirm that the derailleur’s maximum tooth difference of 16T is respected.
Troubleshooting Summary
Most issues with the Shimano FD-5700 front derailleur stem from installation errors, incorrect cable tension, or limit screw misadjustment. Regular maintenance, including cleaning, lubrication, and timely replacement of cables and chains, helps prevent these problems.
When shifting feels inconsistent, systematically check derailleur height, cage angle, cable condition, and limit screws. Addressing these factors in order often resolves the problem without replacing parts.
With proper setup, the FD-5700 delivers smooth and accurate front shifting that matches the reliability expected from Shimano’s 105 series.