跳至主要內容

Emergency Mechanical Fixes for Bicycle Touring: A Quick Guide to Common Problems

挑戰心得

Emergency Mechanical Fixes for Bicycle Touring: Quick Solutions for Common Problems

In the wilderness, deep in the mountains, or 50 kilometers from the nearest supply stop, a mechanical failure is every bicycle tourist’s worst nightmare. But being prepared and mastering basic mechanical repair skills can not only save yourself but also help your riding companions.

Essential Tool Checklist

Before discussing how to fix your bike, make sure you’ve brought the right tools:

Tool Importance Notes
Multi-tool (with 2/3/4/5/6mm hex wrenches) ★★★★★ Most basic tool
Spare inner tubes (at least 2) ★★★★★ Road bike 700c or mountain bike size
Puncture repair kit (patches + sandpaper + glue) ★★★★★ Backup plan
Pump (CO2 + manual) ★★★★★ CO2 is fast, manual as backup
Quick links (2-3, matching your spec) ★★★★☆ May be needed at any time
Chain breaker ★★★★☆ Used together with quick links
Tire levers (3) ★★★☆☆ For removing tires
Spare brake pads ★★★☆☆ Essential for long distances
Electrical tape ★★★☆☆ Versatile, can temporarily secure anything
Zip ties (various sizes) ★★★☆☆ Emergency fastening lifesaver

Most Common Failure 1: Flat Tire

Flat tires are the most common failure in bicycle touring, accounting for about 60% of mechanical issues.

Standard Quick Tire Change Procedure (Goal: complete within 10 minutes)

Step 1: Stop Safely

  • Move to the roadside to avoid further riding and damaging the rim
  • Either flip the bike or lean it, but flipping it (handlebar and saddle on the ground) makes the job easier

Step 2: Remove the Rear Wheel (if it’s a rear flat)

  • Shift the derailleur to the smallest cog (easiest to remove the chain)
  • Loosen the quick release or axle nuts
  • Pull the derailleur back and remove the wheel

Step 3: Remove the Tire

  • First, fully deflate the valve
  • Use tire levers to pry one side of the tire off the rim
  • Remove the old inner tube

Step 4: Check the Cause of the Flat

  • Run your hand along the inside of the tire to find the puncture object (glass, metal shavings)
  • This step must not be skipped! If you don’t remove the foreign object, the new tube will flat immediately

Step 5: Install the New Inner Tube

  • Put a small amount of air in the new tube first (helps it hold its shape)
  • Start installing it into the tire from the valve
  • Finally, use your hands (not tire levers) to work the last section of the tire back onto the rim

Step 6: Inflate

  • CO2: one 16g cartridge suits a road bike (about 110psi), one 16g/25g cartridge suits a mountain bike
  • Manual pumping: slow but reliable

Tubeless-Style Patch Method Without Removing the Wheel (Emergency)

If you have no spare tube or insufficient supplies, you can attempt an emergency patch without removing the wheel:

  1. Apply a patch over the puncture site (not necessarily durable)
  2. Inflate lightly and ride slowly to the nearest supply point

Common Failure 2: Dropped Chain

A dropped chain usually happens when shifting is imprecise or under excessive load, and it’s relatively easy to fix.

Procedure

Chain dropped to the inside of the chainring (most common):

  1. Get off the bike and shift the derailleur to the smallest chainring
  2. Use your hand (with gloves) or a thin stick to lift the chain back onto the chainring
  3. Pedal slowly a few revolutions to confirm it’s normal

Chain tangled (more serious):

  1. Don’t force the pedals; stop first
  2. Use the chain breaker to open the quick link
  3. Untangle the chain and reconnect it

Common Failure 3: Broken Chain

A broken chain is a more serious failure, but with spare quick links it can still be resolved on the spot.

Chain Repair Steps

  1. Locate the broken link and use the chain breaker to remove the damaged link
  2. Confirm the link types at both ends (inner plate or outer plate; you need one inner and one outer to connect)
  3. Insert the quick link to join the two ends
  4. Secure the quick link (pinch both ends of the quick link between thumb and index finger and pull outward to confirm it’s locked)

Note: 11-speed and 12-speed chains are directional, so pay attention to the quick link installation direction

Common Failure 4: Brake Failure

Disc Brake Failure

Situation A: Hydraulic disc brakes (soft/spongy lever feel)

  • Possible causes: low fluid or air in the system
  • On-site handling: check whether the hose is broken; if normal, continue riding slowly and get to a bike shop for bleeding as soon as possible

Situation B: Mechanical disc brakes (reduced braking power)

  • Possible causes: cable stretch or worn brake pads
  • On-site handling: use a hex wrench to adjust the caliper position, or tighten the cable adjuster

Rim Brakes (Caliper/V-Brakes)

  • Adjust the adjustment screw at the end of the brake cable
  • Confirm the brake pads are correctly aligned with the rim
  • If necessary, use a hex wrench to fine-tune the caliper position

Common Failure 5: Loose Frame or Components

Vibration from long-distance riding can gradually loosen various bolts:

  • Regular checks: Every 100km or after any major vibration, use the multi-tool to check key areas such as the stem, handlebar, seatpost, and calipers
  • Torque recommendations: Stem bolts are typically 5-6Nm, seatpost clamps 5-8Nm (refer to your frame manual)

Worst-Case Wilderness Scenarios

If tools or spare parts are insufficient, here are ultimate emergency solutions:

Problem Emergency Solution
Flat tire and no spare tube Stuff grass or leaves into the tire, ride slowly
Broken chain and no quick link Shorten the chain, use only the middle gear ratio, ride as a single-speed
Broken spoke Remove the broken spoke and adjust the rim trueness, ride slowly
Broken handlebar or saddle bolt Temporarily secure with electrical tape, find the nearest bike shop

Conclusion

The ability to handle mechanical failures is a required course for every serious cyclist. It’s recommended to practice tire changes repeatedly at home (goal: complete within 5 minutes), familiarize yourself with your bike’s structure, and perform a full mechanical inspection before every long-distance departure. Self-sufficiency is the true confidence of adventure.

相關影片
訂閱CT的頻道

訂閱 CT Yeh,看武嶺實測與路線攻略

北進武嶺、西進武嶺、經典百K,每條路線都親自騎過,配速、爬升、補給點全部實拍實測。

467 部影片 · 累計 838 萬次觀看