The SEKA Spear is a lightweight, aerodynamic road bike frameset that offers performance comparable to top Western brands at a lower price, though it has some trade-offs in comfort, stiffness, and quality control. It is praised for its unique design, customization options, and value, but faces criticism for limited availability, potential QC issues, and a stiff front end.
Pros
- Lightweight for an aero frameset, with RDC versions around 800g for medium frames1
- Competitive aerodynamics based on wind tunnel data, performing well against premium brands21
- Excellent comfort in the saddle, comparable to Tarmac, thanks to the 'Wind Eye' design34
- High-quality build with good tolerances, easy to assemble35
- Good value compared to Western brands like Specialized SL8, including integrated cockpit31
- Unique appearance with WindEye seatstays and multiple color options45
- Customizable fit with choice of handlebar width and stem length, and two geometries34
- Trouble-free and maintenance-free over 10,000 km3
- Comes with lifetime warranty and support from bike shops in some regions3
- Can achieve very low build weights, with complete bikes around 6.2kg or even 4.96kg for extreme RDC builds1
Cons
- Front end is stiffer and harsher compared to rear, leading to a firmer ride at the front361
- Limited availability in some regions, with long delivery times and only one UK bike shop selling frameset314
- Quality control issues reported: fork steerer alignment, brake mount facing, BB threads, seatpost wedge fit1
- Rapier cockpit reported as flexy by some users, with instances of failure at shifter clamps1
- Not as fast as pure aero bikes like Canyon Aeroad on flat roads4
- Some components (e.g., saddle, handlebar tape) sourced from AliExpress have uncertain long-term quality2
- Poorer range of compatible bike computer mounts (including light mounts)4
- Derailleur hanger required modifications (milling)4
Key Facts
- Claimed frame weight 685g for RDC version; measured weights vary: 930g (large with hardware), 815g (large Shadow Black), 910g (XL Cronos)251
- Uses BSA threaded bottom bracket and flat mount disc brakes53
- Available in 8 sizes including regular and racing geometries52
- Max tire clearance officially 32mm, but some users fit up to 35mm depending on rim width1
- Integrated Rapier cockpit with 76mm reach, 127mm drop, 25mm flare5
- Frameset price is half that of Specialized Tarmac SL8; costs $3499/3199€34
- Lifetime frame warranty, 5 years on fork, 2 years on cockpit and seatpost34
- WindEye seatstay design intended for aero and comfort34
Sources
- 1Weight-WeeniesIncoming: Seka Spear, '690g' frameset
- 2Cycling WeeklyMy Chinese Custom Build vs Specialized Tarmac SL8 - Superbike KILLER?
- 3David Arthur - Just Ride Bikes10,000km Later: Was My Chinese Superbike Worth It?
- 4Cyclists HubSEKA Spear Review: Is It Worth the Premium?
- 5Luke Michael JamesI waited 5 YEARS to unbox this Chinese bike
- 6Cycling unboxedIs the Seka Spear a FLOPPY bike? | My thoughts on the Cycling News review 🤨
Reviews & Ratings
08:47The reviewer defends the SEKA Spear against Cycling Weekly's description of it as a 'floppy bike.' He argues that while the frame does flex, especially the top tube, it snaps back quickly, giving an energetic and propulsive feel. He disagrees with claims of imprecise handling and lack of energy in sprints, attributing perceived flex to the top tube rather than the handlebars or fork. He also notes the bike is not the most comfortable compared to other brands.
13:37The reviewer discusses the SEKA Spear, a Chinese carbon road bike frameset, after riding it for nearly 10,000 km over 17 months. He praises its performance, comparing it favorably to top Western race bikes like the Specialized Tarmac SL8, and highlights its value at half the price. He notes its excellent comfort, handling, and build quality, but mentions a stiffer front end and limited availability in the UK.
13:29The reviewer built a custom bike around a SEKA Spear RDC frameset to compare against the S-Works Tarmac SL8. He praises the frame's light weight, all-round performance, and aero credentials, while noting minor issues with bottle cages and rear mech hanger alignment. He also discusses the financial and mechanical considerations of a custom build.
13:11The reviewer unboxes and examines the SEKA Spear frame, praising its paint quality, finish, and internal carbon work. He notes the unique sizing system with eight sizes, including racing geometry options. The frame weighs 930g in large with hardware. He also highlights the Rapier handlebar and seatpost design.

The reviewer interviewed Denis, the first SEKA Spear RDC owner in Czechia, who praises the frameset for its sharp responsiveness, playful handling, impressive comfort on long rides, strong climbing performance, and high-quality build. He notes it's a stylish alternative to well-known brands, though questions the actual aerodynamic effect of its unique WindEye seatstays.
The Seka Spear is a lightweight, aero-optimized road frameset from a Chinese brand, gaining popularity for its performance and value. It features a carbon fiber construction with a unique 'Wind Eye' seatstay design for claimed vibration damping and aerodynamics. The frameset includes an integrated Rapier cockpit and is available in standard and RDC (Race Design Carbon) versions, with the latter using higher-modulus carbon for reduced weight. Key attributes noted by users include competitive weights (e.g., ~800g for a medium frame in Chronos color, ~815g for Large Shadow Black, ~910g for XL Cronos), BSA threaded bottom bracket, and a max tire clearance of 32mm (though some users fit up to 35mm tires on specific rims, with tight clearance). Pricing is generally lower than Western brands like Specialized SL8, but availability can be limited with long lead times. Ride impressions highlight a stiff, responsive feel good for climbing and descending, with comfort praised by many, especially in the rear, though some report a harsh front end, disc brake rub, or road buzz. Users have achieved very low build weights, with complete bikes around 6.2kg and extreme RDC builds as low as 4.96kg. Quality control issues include misaligned components, seatpost wedge fit problems, and handlebar wobble in crosswinds, but warranty support is available. The frameset supports various computer mounts, though compatibility may require adapters for devices like Hammerhead Karoo. A new TT frame with Wind Eye design has been released. Sizing advice varies: some users size down with spacers for agility, while others match geometry to existing bikes.
AI Summary
Pros
- Lightweight for an aero frameset, with RDC versions around 800g for medium frames
- Good ride quality: responsive, comfortable, and confidence-inspiring on descents
- Competitive aerodynamics based on wind tunnel data, performing well against premium brands
more pros in the review
Cons
- Limited tire clearance, officially 32mm max, with tight fits reported on wider rims
- Inconsistent quality control: issues with fork steerer alignment, brake mount facing, and BB threads
- Long delivery times and availability challenges, with orders taking months
more cons in the review
Key Points
- Carbon fiber construction with 'Wind Eye' seatstay design
- BSA threaded bottom bracket
- Max tire clearance 32mm (some users fit up to 35mm)
more key points in the review
Where to Buy

Seka Spear Frameset
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