Fixing a shift lever at the track
A shift lever is a critical component for cyclists, especially during track racing where precise and timely gear changes can affect performance and safety. When a shift lever malfunctions on the track, it is essential to address the issue swiftly to avoid race interruptions and ensure rider control. Common problems with shift levers at the track include cable slack, misalignment, or physical damage due to impacts. The first step in fixing a shift lever is to identify the exact issue: check for any visible bends or breaks, test the lever movement, and inspect the cable tension. To adjust cable tension, use the barrel adjuster located near the lever or derailleur. Turning it clockwise tightens the cable, improving response, while turning it counterclockwise loosens it. Proper cable tension prevents gear slipping or difficulty in shifting. If the lever is physically damaged, replacement of the lever or the entire shifter assembly might be necessary. Some track bikes use fixed gear setups without derailleurs, but for those using multi-gear systems, maintaining the shift lever is vital. Regular maintenance helps prevent shift lever failures. Lubricating pivot points, cleaning the lever area from dirt and debris, and ensuring cables are free from rust or frays improve shifting performance. By understanding these common issues and maintenance tips, cyclists can quickly fix or adjust their shift levers on the track, minimizing downtime and improving race outcomes. Remember, having basic tools like Allen keys, cable cutters, and a bike-specific multi-tool handy during track sessions allows for prompt shift lever repairs or adjustments whenever needed.
on a ttr 90 it only runs with the choke on, why?