The Hendurance PtarmiGrand is built for riders who think the best roads aren’t always paved. Named after the hardy ptarmigan, this gravel frame is designed for big adventures, rugged backroads, and the occasional detour where things get a little wild. With a lightweight T800-35T carbon layup and a frame weight of just 970 g, the PtarmiGrand blends road bike efficiency with off road toughness.
This frame is as versatile as it is fast. It clears 700C tires up to 42C or 650B x 2.0”, giving you options to go smooth and speedy or wide and rowdy. A BB386 threaded bottom bracket ensures reliability, while internal routing supports both Di2 and mechanical drivetrains. With disc brake integration (front 140–160 mm, rear 140–160 mm with adapter), a 320 g carbon fork, and a 180 g carbon seatpost, the PtarmiGrand is built to roll far, ride fast, and laugh at rough terrain.
This is gravel refined: light, durable, and ready for big rides where the map turns into an invitation.
Gravel carbon frame – T800-35T, 970 g
Wheel and tire clearance – 700C up to 42C or 650B (27.5) up to 2.0”
Fork – 320 g carbon
Seatpost – 180 g carbon
Headset – 1-1/8 to 1-1/2
Bottom bracket – BB386 threaded, 46 mm diameter, 86 mm length
Internal cable routing – Di2 and mechanical compatible
Brakes – disc brake compatible, front 140–160 mm, rear 140–160 mm with adapter
Includes – frame, fork, seatpost, seatpost clamp, headset
Warranty – frame 2 years, fork/seatpost/handlebar 1 year
The Hendurance PtarmiGrand is built for riders who think the best roads aren’t always paved. Named after the hardy ptarmigan, this gravel frame is designed for big adventures, rugged backroads, and the occasional detour where things get a little wild. With a lightweight T800-35T carbon layup and a frame weight of just 970 g, the PtarmiGrand blends road bike efficiency with off road toughness.
This frame is as versatile as it is fast. It clears 700C tires up to 42C or 650B x 2.0”, giving you options to go smooth and speedy or wide and rowdy. A BB386 threaded bottom bracket ensures reliability, while internal routing supports both Di2 and mechanical drivetrains. With disc brake integration (front 140–160 mm, rear 140–160 mm with adapter), a 320 g carbon fork, and a 180 g carbon seatpost, the PtarmiGrand is built to roll far, ride fast, and laugh at rough terrain.
This is gravel refined: light, durable, and ready for big rides where the map turns into an invitation.
Gravel carbon frame – T800-35T, 970 g
Wheel and tire clearance – 700C up to 42C or 650B (27.5) up to 2.0”
Fork – 320 g carbon
Seatpost – 180 g carbon
Headset – 1-1/8 to 1-1/2
Bottom bracket – BB386 threaded, 46 mm diameter, 86 mm length
Internal cable routing – Di2 and mechanical compatible
Brakes – disc brake compatible, front 140–160 mm, rear 140–160 mm with adapter
Includes – frame, fork, seatpost, seatpost clamp, headset
Warranty – frame 2 years, fork/seatpost/handlebar 1 year