Kink Roll Up BMX Frame – Hobie Doan Signature, CrMo 4130 | RideHub

The Kink Roll Up is a BMX frame designed specifically for street riding, combining modern geometry with high durability. With a short chainstay (12.75"-13.25") and a steep headtube angle (75°), it guarantees precise steering and a dynamic ride. Constructed from double-hardened, seamless 4130 chromoly steel, it features reinforced top and down tubes, tapered chainstays, and integrated chain stays for optimal fit.

The frame accommodates tires up to 2.5" and is compatible with removable U-Brake mounts and a gyro system. Thanks to investment-cast dropouts (6.5 mm) and laser-cut components, it ensures durability and resistance to intensive use.

Product features:

Frame geometry:

• Top Tube Length (TT): 20.75"
• Chainstay Length (CS): 12.75" - 13.25" (32.39 - 33.65 cm)
• Headtube angle (HA): 75°
• Seat tube angle (SA): 71°
• Bottom Bracket Height (BB): 11.75" (29.85 cm)
• Frame Height (SO): 9.25" (23.49 cm)

Material and construction:

• Material: 100% 4130 CrMo, heat-welded
• Top and down tubes: Gusset reinforced for added strength
• Rear Dropouts: Investment cast, 6.5mm thick, 14mm slots, laser cut
• Chainstay: tapered
• Maximum tire width: up to 2.5"

Compatibility:

• Seat clamp: integrated
• Seatpost diameter: 25.4 mm
• Bottom bracket type: Mid BB
• Chain tensioners: integrated
• Brake type: U-Brake (removable mounts)
• Brake mounts: M6 screws (not included)
• Gyro Compatibility: Yes

Available colors:

• ED Black
• Gloss Raw Tint
• Trans Sky Blue

Libra:

• 20.75" TT - 2,260g

For whom?

The Kink Roll Up is a BMX frame designed for street riders who value short and responsive geometry, durability, and precise handling. This Hobie Doan signature frame is perfect for technical riding and creative tricks.

The most important advantages:

✅ Hobie Doan Signature Frame – Pro Street Model
✅ Modern geometry adapted to technical freestyle riding
✅ Short 12.75" - 13.25" chainstays for maximum maneuverability
✅ Wide rear frame – compatible with tires up to 2.5"
✅ Investment cast hooks and laser cut components for durability
✅ Gyro compatible and removable U-Brakes

Why choose Kink Roll Up?
This is one of the best street frames, designed for dynamic riding. Its signature geometry, high-quality craftsmanship, and modern solutions ensure maximum precision and durability during every session.