16" TREK 4100 Alpha Aluminum 21 Speed Hardtail Mountain Bike 5'5"-5'8"
2011 1.5 - Bike Archive - Trek Bicycle
1.1 | Trek Bikes
First look: Trek's 2016 road bike range | road.cc
Aluminum | Trek Bikes
Trek Alpha 4500 - 17.5 in Frame - 26in Wheel - Grey - PGH#20139 - Portland Gear Hub
1.2 | Trek Bikes
2003 4900 - Bike Archive - Trek Bicycle
Trek 1.9 - BikeRadar
Aluminum | Trek Bikes
1.2 | Trek Bikes
Trek 4300 Mountain Bike Review: A Comprehensive Look (2023)
Trek Alpha - Road Bike - Grade: Fair
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16.5" TREK 4500 Alpha Aluminum 24 Speed Hardtail Mountain Bike ~5'4"-5'7"
2003 4100 - Bike Archive - Trek Bicycle
