mtb
✓ Verified Active Listing
Fifth Street Rock Monster - MASS XC #1
🧬 Course DNA & Technical Intel
📏 Primary Distance
17.4 mi
🛞 Recommended Tire
2.2" – 2.4" XC Tubeless
🚴 Discipline
mtb
🏁 Course Distance Options
FREE Kid's Race
Pro-Elite-Cat 1 Men Open
Pro-Elite-Cat 1 Women Open
Cat 1 Men Under 19
Cat 1 Men 19-39
Cat 1 Men 40-49
Cat 1 Men 50-59
Cat 1 Singlespeed
Cat 1 & 2 Women 50+
Cat 1 Non-Binary
Cat 2 Under 16 Juniors Co-Ed
Cat 2 Men Under 19
Cat 2 Men 19-39
Cat 2 Men 40-49
Cat 2 Men 50-59
Cat 1 & 2 Men 60+
Cat 2 Singlespeed
Cat 2 Clydesdale Men
Cat 2 Women Under 19
Cat 2 Women 19-34
Cat 2 Women 35-49
Cat 2 Non-Binary
Junior Male Under 13
Junior Female Under 13
Junior Male 13-14
Junior Female 13-14
Cat 3 Men 15-18
Cat 3 Men 19-39
Cat 3 Men 40-49
Cat 3 Men 50+
Cat 3 Women 15-18
Cat 3 Women 19-39
Cat 3 Women 40+ & 60+
Cat 3 Non-Binary
About Fifth Street Rock Monster - MASS XC #1
Official registered mtb event in Mertztown, PA. Direct registration on BikeReg.
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⚙️ Recommended Pro Hardware for Fifth Street Rock Monster - MASS XC #1
Top-rated power meters, radar, and GPS computers curated by Threshold Cycling.
Dual-Sided SPD Accuracy
View Product Specs ↗
Favero Assioma Pro MX-2 Power Meter Pedals
$759.00
±1% real-world power accuracy, seamless Bluetooth/ANT+ connectivity, and full rock strike durability designed specifically for gravel epics.
Backcountry Safety
View Product Specs ↗
Garmin Varia RTL515 Radar Tail Light
$199.99
Detects approaching vehicles up to 153 yards away with visual and audible cockpit alerts on your GPS computer. Vital for remote rural gravel roads.
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