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Chapter2 KOKO vs Giant Propel Advanced
Pick up to 4 bikes. Rows line up component by component. Highlighted rows differ, and green marks the best value where lower or higher is clearly better.
Key differences
- The Giant Propel Advanced starts €999 cheaper (€3,000 vs €3,999 for the Chapter2 KOKO).
- The Chapter2 KOKO comes in 5 sizes, the Giant Propel Advanced in 6.
Chapter2 KOKO
Giant Propel Advanced
| Chapter2KOKO | GiantPropel Advanced | |
|---|---|---|
| Overview | ||
| Brand | Chapter2 | Giant |
| Build | KOKO frameset | Propel Advanced 0 |
| Build notes | Frame, fork, headset, seatpost, thru-axles and Quick-Fit spacers; handlebar not included (MANA bar is an add-on). Prices from Chapter2's USA, Europe and UK stores (Asia/international is also US$2,749); shipping and taxes included except in Japan and Canada. Each colourway is a limited run ('once sold out, never produced again'); on 2026-10-06 the BRG + Yellow colourway was shown at a sale price of US$2,099 and out of stock, the others in stock in XS-M (some L). Bicycling Australia's 2022 launch article listed A$5,199 (black) and A$5,499 (limited). | Azurite Blue. EUR price from Giant Germany. Not listed on Giant's US site. |
| Price (MSRP) | €3,999$2,749£3,999 | €4,800€4,800£4,199 |
| Model year | 2022 | 2027 |
| Generation | — | Fourth-generation Propel (2026) |
| Launched | 2022-02 | 2026-03 |
| Discipline | Aero road | Aero road |
| UCI legal | Yes | Not stated |
| Verdict (out of 100) | ||
| Overall score | — | 79 |
| Aero | 76 | 80 |
| Frame | 72 | 80 |
| Components | — | 64 |
| Fit | 78 | 78 |
| Practicality | 76 | 72 |
| Price | — | 100 |
| Frame & fork | ||
| Frame material | Carbon (Toray, made in Japan); latex-mandrel moulded front triangle | Carbon (Advanced-grade composite, one-piece front triangle) |
| Fork material | Carbon | Carbon (Advanced-grade composite, full-composite D-shaped OverDrive Aero steerer) |
| Frame weight | 1,096 g2.42 lb | 863 g30.4 oz |
| Fork weight | 419 g14.8 oz | 410 g14.5 oz |
| Frameset weight | — | 1,619 g3.57 lb |
| Weight measured on | Frame size M (±3%); fork uncut (±3%); seatpost 215 g (size M) | Giant's figures for a size M unpainted production frame and fork; the frameset total adds the seatpost and clamp, derailleur hangers, expander, top cap, spacers and headset bearings |
| Frame sizes | XS, S, M, L, XL | XS, S, M, M/L, L, XL |
| Colours | White + Grey (Tauriparipa), Black + UD with Gold (Koura, Essential Edition), BRG + Yellow with Silver, Silver + UD (Ponga) | Azurite Blue (Advanced 0), Carbon/Stealth Chrome and Meteor Storm (Advanced 1), White and Mach Blue (Advanced 2) |
| Also available as | — | Propel Advanced Pro: the same frame with an Advanced SL-grade fork and a one-piece bar and stem; Propel Advanced SL: Advanced SL-grade frame with an integrated seatpost |
| UCI frame approval | Approved 12 Mar 2021 as 'KOKO' (frame and fork), sizes XS-XL (5), code CHA2-KOKO (UCI list version 2026.10.02) | — |
| Compatibility & standards | ||
| Brake type | Disc only | Hydraulic disc |
| Wheel size | — | 700c |
| Max tire width | 32 mm | 32 mm |
| Bottom bracket standard | T47 (86.5) internal | Press-fit |
| Front axle | — | 12x100 thru-axle |
| Rear axle | — | 12x142 thru-axle |
| Drivetrain compatibility | Mechanical or electronic; Shimano Di2, SRAM eTap and Campagnolo EPS compatible | — |
| Mechanical shifting possible | Yes | — |
| Cable routing | Fully integrated (internal) | Fully internal through the bar and stem, the D-shaped steerer and the frame |
| Electronic battery location | Takes Shimano SM-BTR2 or BT-DN300 and Campagnolo EPS V3 batteries | — |
| Hydration & storage | ||
| Bottle mount locations | — | Down tube and seat tube, with Giant's tube-specific aero bottle cages |
| Fit & adjustability | ||
| Cockpit | Optional one-piece carbon MANA bar and stem, or a standard stem and handlebar; 1.5in C2 integrated headset | Two-piece aero bar and stem (Giant Contact SL Aero), internally routed |
| Standard stem and bar possible | Yes | — |
| Seatpost type | Chapter2 carbon seatpost, 10 mm setback, dual-position (invertible) seat clamp to tune compliance | Giant Vector composite aero seatpost, -5/+15 mm offset |
| Saddle position range | — | -5 to +15 mm offset |
| Fit notes | 5 sizes for riders from 160 cm. The optional MANA5 one-piece cockpit comes in 12 sizes (80-120 mm stem, 405-449 mm at the drops) and the MANA2 in 6 sizes (80-130 mm, 380-435 mm); both have 70 mm reach, 128 mm drop and a -7° stem. Quick-Fit headset spacers. | — |
| Aerodynamics | ||
| Manufacturer aero claims | Chapter2 publishes no drag figures; it cites Kamm-tail profiles, integrated cabling and a rear-wheel cut-out in the seat tube | — |
| Testing method | — | AeroSystem Shaping tube profiles developed with CFD modelling and wind-tunnel testing across a range of yaw angles |
| Tube profile | Kamm-tail (truncated aerofoil) down tube | Truncated ellipse tubing (AeroSystem Shaping) |
| Travel, maintenance & warranty | ||
| Headset bearings | 1.5in C2 integrated system | — |
| Derailleur hanger | — | UDH |
| Proprietary parts | Seatpost and dual-position seat clamp; MANA one-piece cockpit (optional) | D-shaped steerer and spacers, Contact SL Aero stem, Vector aero seatpost |
| Frame warranty | Lifetime warranty (as stated on the product page) | — |
| Sold via | Direct from Chapter2 online (shipping and taxes included except in Japan and Canada) and through dealers | — |
| Drivetrain | ||
| Groupset | — | Shimano Ultegra Di2 R8100 |
| Launched | — | 2021 · current generation |
| Speeds | — | 12-speed |
| Electronic | — | Yes |
| Drivetrain | — | 2x |
| Shifters | — | Shimano Ultegra Di2 ST-R8170 |
| Crankset | — | Shimano Ultegra R8100 |
| Chainrings | — | 52/36 |
| Crank length | — | 165 (XS, S) / 170 (M, M/L) / 172.5 (L, XL) |
| Bottom bracket | — | Shimano Press-fit |
| Standard | — | Press-fit |
| Front derailleur | — | Shimano Ultegra Di2 R8150 |
| Rear derailleur | — | Shimano Ultegra Di2 R8150 |
| Cassette | — | Shimano Ultegra R8100 |
| Range | — | 11-34 |
| Speeds | — | 12-speed |
| Chain | — | Shimano CN-M8100 |
| Brakes | ||
| Brake levers | — | Shimano Ultegra Di2 ST-R8170 |
| Brake calipers | — | Shimano Ultegra |
| Type | — | Hydraulic disc |
| Rotors | — | Shimano RT-CL700 |
| Front rotor | — | 160 mm |
| Rear rotor | — | 140 mm |
| Wheels & tires | ||
| Wheelset | — | Giant SLR 2 50 WheelSystem |
| Front rim depth | — | 50 mm |
| Rear rim depth | — | 50 mm |
| Material | — | Carbon |
| Hubs | — | Giant Aero Hub (front), Giant Aero Hub with 3-pawl driver (rear), Center Lock, 12 mm thru-axles |
| Spokes | — | Sapim |
| Tires | — | Giant Gavia Course |
| Tire width | — | 28 mm |
| Set up tubeless | — | Yes |
| Cockpit | ||
| Handlebar | — | Giant Contact SL Aero |
| Type | — | Two-piece aero bar and stem |
| Integrated stem | — | No |
| Widths available | — | 380/360 mm (XS, S), 400/370 mm (M, M/L), 420/390 mm (L, XL), drops/hoods |
| Tops | — | Aero (flat tops) |
| Cable routing | — | Internal |
| Stem | — | Giant Contact SL Aero |
| Stem length | — | 80 (XS) / 90 (S) / 100 (M) / 110 (M/L, L) / 120 (XL) |
| Headset | Chapter2 C2 Integrated 1.5in | — |
| Saddle & seatpost | ||
| Saddle | — | Giant Fleet SL |
| Seatpost | Chapter2 KOKO seatpost | Giant Vector |
| Offset / setback | 10 mm | -5/+15 mm |
| Material | Carbon | Carbon |
| Weight | 215 g7.6 oz | — |
| Notes | Weight for size M; dual-position seat clamp | — |
| Bar tape | — | Giant Stratus Lite 2.0 |
| Geometry (smallest – largest size) | ||
| Sizes | XS, S, M, L, XL | XS, S, M, M/L, L, XL |
| Rider height min | 160–180 cm5′3″–5′11″ | 157–189 cm5–6′2″ |
| Rider height max | 170–185 cm5′7″–6′1″ | 169–199 cm5′7″–6′6″ |
| Stack | 491–591 mm19.3–23.3″ | 515–596 mm20.3–23.5″ |
| Reach | 365–401 mm14.4–15.8″ | 377–412 mm14.8–16.2″ |
| Seat tube angle | 73° | 72.5–74.5° |
| Head tube angle | 70.5–73.5° | 71.5–73° |
| Head tube length | 94–188 mm3.7–7.4″ | 115–200 mm4.5–7.9″ |
| Effective top tube | 515–581 mm20.3–22.9″ | 520–600 mm20.5–23.6″ |
| Seat tube length | 427–521 mm16.8–20.5″ | 484–595 mm19.1–23.4″ |
| Chainstay | 408 mm16.1″ | 405 mm15.9″ |
| Wheelbase | 970–1,000 mm38.2–39.4″ | 971–1,020 mm38.2–40.2″ |
| BB drop | 73 mm2.9″ | 67–72 mm2.6–2.8″ |
| Fork offset | 43–53 mm1.7–2.1″ | 45 mm1.8″ |
| Trail | — | 58.3–67.8 mm2.3–2.7″ |
| Front centre | 574–603 mm22.6–23.7″ | — |
| Standover | 708–805 mm27.9–31.7″ | 746–847 mm29.4–33.3″ |
| Wheel size | — | 700c |
| Crank length | — | 165–172.5 mm6.5–6.8″ |
| Stem length | — | 80–120 mm3.1–4.7″ |
| Handlebar width | — | 380–420 mm15–16.5″ |
Geometry overlay
Pick a size for each bike to see frames and arm-pad ranges on top of each other.
Drawn to scale (how to read it).