These were used by Prowheel, Late 90's early 2000's. CHAINRING GUARD PROTECTOR 48 TEETH CHAINGUARD PROTECTOR MTB ETC NEW. Chain ring guard protector to fit chain wheels with 5 threaded holes. Maximum fit 48Teeth chainwheel.
Prowheel Bike Chainset Double Chain Wheel Set 38/48 Teeth Crankset 152mm Silver
Shimano FD-TX800 Tourney TX Front Derailleur Dual-Pull 42/48 Teeth 63-66deg
X AUTOHAUX 48 Teeth 12cm Bicycle Crankset Chain Wheel Cover Protector Black
Bike Chain Guard, 4 Holes 48 Teeth Plastic Bike Chain Cover, Practical Universal Protector for Most Bikes, Mountain Bikes, City Road Guard
X AUTOHAUX 48 Teeth 9.5cm 5 Holes Bicycle Bike Crankset Chain Wheel Cover Black
X AUTOHAUX 48 Teeth 10cm 5 Holes Bicycle Bike Crankset Chain Wheel Cover Black
