The SEKA Spear is a lightweight, aerodynamic Chinese carbon frameset that delivers performance comparable to premium Western race bikes at roughly half the price, with strong aero credentials, good comfort (especially at the rear), and high-quality finish. However, stiffness is a genuine debate: lighter riders find the frame fine but the integrated Rapier handlebar flexes noticeably, while heavier or more powerful riders report bottom bracket sway and a power ceiling. Quality control and warranty support are inconsistent, and availability outside a few distributors is limited.
Pros
- Lightweight for an aero frameset: measured 800–910 g depending on size and paint, with complete builds around 6.2 kg common.12
- Roughly half the price of a Specialized Tarmac SL8 frameset, with cockpit and accessories included.34
- Strong rider-on aerodynamics, confirmed by wind tunnel testing and comparable to dedicated aero bikes.513
- Comfortable ride, especially at the rear, with confidence-inspiring handling on technical descents.314
- High-quality finish, paint and internal carbon work with good tolerances and easy assembly.234
- Trouble-free and maintenance-free over 10,000 km of riding.3
- Playful, sharp and precise handling with strong climbing performance and lively acceleration.46
- Customizable fit with multiple handlebar widths, stem lengths, and offset/zero-offset seatpost options.34
- Growing aftermarket support including Ganna/HY seatposts, Krueza Apex bar and CNC direct-mount hangers.1
Cons
- The stock Rapier handlebar flexes noticeably, especially in the drops, even for lighter riders; a few have failed at the shifter clamps.16
- Frame stiffness is limited for heavy or powerful riders: a 90 kg sprinter avoids full-power efforts, and the bottom bracket sways visibly on a trainer.1
- Inconsistent quality control: misaligned or off-centre forks, poorly faced brake mounts, BB threads needing chasing, and wrong seatpost wedges.14
- Warranty responses can be very slow, ranging from days to a month or almost three months, though issues were eventually resolved.1
- Tyre clearance is officially 32 mm and about 33 mm measured is already tight.1
- Long delivery times and patchy availability, with limited UK distribution through a single shop.134
- The stock SRAM derailleur hanger is soft and may require milling or replacement for reliable shifting.14
- Front disc rub with Shimano calipers unless rotors are perfectly centred, and some report bar wobble in crosswinds at speed.1
- Not as fast as pure aero bikes like the Canyon Aeroad on flat roads, and the aerodynamic effect of the WindEye seatstays is questionable.4
- Higher depreciation compared to traditional Western brands.4
Key Facts
- Measured frame weights: approximately 800 g for a medium RDC, 815 g for a painted large, 910 g for an XL Cronos; fork about 413 g cut.12
- Official tyre clearance is 32 mm; a 33.4 mm measured tyre leaves only about 2.5 mm of clearance.13
- BSA threaded bottom bracket (68 mm) with flat-mount disc brakes and 12 mm thru-axles.23
- Integrated Rapier cockpit: 76 mm reach, 127 mm drop, 25 mm flare; the 360 mm width is only offered with a 110 mm stem.21
- Available in two geometries (standard and racing) across 8 sizes, from small to extra large.25
- Lifetime frame warranty (5 years on fork, 2 years on cockpit and seatpost).43
- Frameset price is $3,499 / €3,199, roughly half the price of a Specialized Tarmac SL8 frameset.43
- Uses 'Wind Eye' seatstays and has been tested in a wind tunnel against the Tarmac SL8.34
Sources
- 1Weight-WeeniesIncoming: Seka Spear, '690g' frameset
- 2Luke Michael JamesI waited 5 YEARS to unbox this Chinese bike
- 3David Arthur - Just Ride Bikes10,000km Later: Was My Chinese Superbike Worth It?
- 4Cyclists Hub | Petr MinarikSEKA Spear Review: Is It Worth the Premium?
- 5Cycling WeeklyMy Chinese Custom Build vs Specialized Tarmac SL8 - Superbike KILLER?
- 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 light aero road frameset with Seka's 'Wind Eye' seatstays, a BSA threaded bottom bracket, an integrated Rapier cockpit and an official 32 mm tyre clearance. It comes in standard and lighter RDC layups; measured frames are about 800-910 g depending on size and paint. Riders praise its aerodynamics, comfort (especially at the rear) and descending confidence, and owners have ridden it for 18 months and more. Stiffness is the main debate. A Cyclingnews review praised the rider-on aero performance but found frame and bars too soft for racing. Light owners agree the Rapier bar flexes, especially in the drops, and swapping to a Krueza Apex transformed the handling. A 90 kg sprinter avoids full-power efforts on it, and another owner saw the bottom bracket sway on the trainer. Quality control and warranty are uneven: - misaligned forks, poorly faced brake mounts and wrong seatpost wedges have been reported; - warranty answers took from days (through Florian Bikes) to a month or three, though in the end affected owners got a new fork or even a new frame. Aftermarket parts now include Ganna and HY seatposts and a CNC SRAM direct-mount hanger from FramesandGear, which replaces the soft stock hanger.
AI Summary
Pros
- Light for an aero frameset: about 800 g for a medium RDC, 815 g for a painted L, 910 g for an XL; complete builds around 6.2 kg are common.
- Strong rider-on aerodynamics, confirmed by a Cyclingnews review and wind tunnel data.
- Comfortable, especially at the rear, and confidence-inspiring on technical descents; owners find it more comfortable than a Caledonia 5 without feeling less racy.
more pros in the review
Cons
- The stock Rapier bar flexes noticeably, especially in the drops, even for a 60 kg rider; a few have also failed at the shifter clamps.
- Frame stiffness is limited for heavy or powerful riders: a 90 kg sprinter avoids full-power efforts, and the bottom bracket sways visibly on a trainer.
- Inconsistent quality control: misaligned or off-centre forks, poorly faced brake mounts, BB threads needing chasing and wrong seatpost wedges.
more cons in the review
Key Points
- Carbon frame with 'Wind Eye' seatstays; standard and lighter RDC layups.
- BSA threaded bottom bracket.
- Official tyre clearance 32 mm; 33.4 mm measured leaves about 2.5 mm.
more key points in the review
Where to Buy
Seka Spear Frameset
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