Winspace SLC5.0 Ultegra Di2

Reviews & Ratings

Cyclists Hub | Petr Minarik on YouTube1 day ago

00:21:08

Something Is Missing: Winspace SLC5 Review

The reviewer discusses the Winspace SLC5.0 Ultegra Di2, highlighting its premium carbon layup, comfort, and low weight, but notes quality control issues including a problematic fork, wrong compression plug, and inconsistent handlebar diameters. The bike is compared favorably to the Winspace T1600 and Agile in terms of comfort and weight, but is found less stiff and slightly slower aerodynamically than the T1600.

AI Summary

Pros

High-end carbon layup with T1100 and military-grade M46/M65 carbon
Very comfortable for long rides, rated 5/5 for comfort
Low weight: 6.9 kg with Ultegra Di2 and Hyper Fives
Snappy acceleration and easy climbing
Clean internal finish and clever DI2 wire routing
Stunning Mirage color (limited edition)
Competitive complete bike pricing (e.g., $5,100 on Black Friday)

Cons

Fork lacked guiding groove for brake hose routing, causing delay
Received wrong compression plug for the Hyper cockpit
Hyper cockpit had inconsistent left/right drop diameters (left ~25.8mm, right ~24.6mm), requiring sanding to fit shifter
Front seat clamp bolt hard to access without saddle cutout
Steering limited to ~90° due to fork/frame transition, risk of scuffing
Mirage paint chipped easily during build
Less stiff than T1600 under hard acceleration
Slightly slower aerodynamically than Specialized SL8 (about 2W slower)
More nervous in crosswinds compared to T1600

Key Points

Frame price: $2,800 (before 10% discount)
Uses T1100, M46, and M65 carbon fibers
Geometry similar to Specialized SL8
Wind tunnel tested at Silverstone and Fuji; saves 13W at 48km/h vs SLC3
Complete bike with Dura-Ace Di2, Hyper cockpit, Hyper 3 wheels: $6,700 (before discount)
Weight: 6.9 kg with Ultegra Di2, Hyper Fives, 28mm tires
Available with 10% discount code 'cyclist up 10'