Fiend Shapeshifter 335 Frame Description:
The Fiend Shapeshifter frame delivers a responsive and controlled ride with geometry aimed at today’s technical street riding. Built from heat-treated chromoly for added strength, the frame offers durability where it counts while maintaining a clean, minimal aesthetic. With a 75.5° head tube and a comfortable 9" seat tube height, the Shapeshifter is ideal for riders looking to dial in a bike that feels quick, balanced, and dependable on street spots of all kinds.
Note: The Shapeshifter is available in 2 different rear end (chainstay) length options. This 335mm (13.25") version as well as the shorter, quicker 320mm (12.75") option available here.
Features:
- Heat-treated 4130 chromoly
- Externally internal gusseted top and down tubes, double-butted top
- Heat-treated Mid BB shell and head tube(tapped for gyro tabs)
- Externally butted seat tube with integrated post clamp
- Single bend chain stays
- 8mm thick investment cast dropouts with integrated chain tensioners
Specifications:
- Frame Material: 4130 Chromoly
- Headset Type: Integrated (Campy)
- Gyro Tabs: Drilled (Not included, available here)
- Brake Mounts: Removable (Not included, available here)
- Bottom Bracket Type: Mid
- Seatpost Size: 25.4mm
- Seat Clamp: Integrated
- Dropouts: 14mm
- Color: Black
- Weight: 5 lbs 1.6 oz (20.5" tt)
Geometry:
- Toptube Lengths: 20.5", 20.75", 21", & 21.25"
- Chainstay Length: 13.25" (335mm) Slammed
- Headtube Angle: 75.5°
- Seattube Angle: 71°
- Standover Height: 9"
- Bottom Bracket Height: 11.625"
Top your new frame off with fresh bearings. Find an integrated headset here.
Get a new bottom bracket kit here!
Confused by all that geometry? Check out our video below explaining BMX frame geometry and how it affects the feel of a bike.
This product was added to our catalog on December 17, 2025