Chapter2 KAHA Gravel Frameset
The Chapter2 KAHA gravel frameset is CHAPTER2’s gravel race platform: controlled speed, precise handling, and real-world versatility. Fully integrated cabling via the MANA-GRVL cockpit, internal downtube storage, and a serviceable T47 (85.5) bottom bracket create a stiff, quiet, easy-to-maintain chassis. Clearance up to 50 mm (front) / 47 mm (rear) on 700C (and 47 mm on 650B) lets you choose fast or chunky rubber without compromise.
Chapter2 KAHA — Features & Benefits
- Race-tuned gravel geo: Balanced stability & agility across XS–XL with size-specific fork offsets (65 mm in XS/S; 55 mm in M/L/XL).
- Integrated routing: Clean aero front end with MANA-GRVL bar/stem and Quick-Fit headset spacers.
- Downtube storage: Stash tools/tubes low in the frame for tidy, rattle-free setups.
- T47 (85.5) BB: Stiff, quiet, and easily serviceable for heavy mileage.
- Generous clearance: Up to 50/47 mm (700C) or 47 mm (650B) for grip and comfort at speed.
- Made with Toray carbon: 100% Japan-made fibers, EN ISO 4210 tested.
Chapter2 KAHA — Specifications
Frame Specs
- Carbon: Toray (Japan), EN ISO 4210
- Frame Weight: ~1,099 g (M, ±3%)
- Fork Weight: ~409 g (±3%)
- Bottom Bracket: T47 internal (85.5)
- Headset: 1.5" C2 Integrated System
- Brake / Axles: Disc-only; 12×100 (F) / 12×142 (R)
- Tire Clearance: 50 mm front / 47 mm rear (700C); 47 mm (650B)
- Fork Offsets: 65 mm (XS/S), 55 mm (M/L/XL)
- Shifting: Mechanical & Electronic compatible
- Storage: Internal downtube compartment
Included with the Frameset
- Frame & Fork
- MANA-GRVL compatible headset & Quick-Fit spacers
- Thru-axles & small parts
- Seatpost
- Installation diagram
Torque Specs
- Saddle Rail: 6 Nm
- Seatclamp: 8 Nm
- Stem (Steerer): 6 Nm
- Stem (Handlebar): 6 Nm
- Front Derailleur Hanger: 3 Nm
- Rear Derailleur Hanger: 2 Nm
- BB Cable Guide Cover: 1 Nm
- Thru-Axle: 10 Nm
- Water Bottle Cage Bolts: 3 Nm
Chapter2 KAHA — Geometry
| KAHA | XS | S | M | L | XL |
|---|---|---|---|---|---|
| Stack | 519 | 545 | 571 | 596 | 622 |
| Reach | 377 | 386 | 395 | 404 | 413 |
| A. Top Tube | 535 | 553 | 569 | 586 | 603 |
| B. Head Tube | 101 | 129 | 148 | 175 | 202 |
| C. Seat Tube Angle | 73° | 73° | 73° | 73° | 73° |
| D. Head Tube Angle | 71° | 71° | 72° | 72° | 72° |
| E. Seat Tube | 436 | 462 | 491 | 512 | 541 |
| F. BB Drop | 70 | 70 | 70 | 70 | 70 |
| G. Rear Centre | 415 | 415 | 415 | 415 | 415 |
| H. Wheelbase | 1009 | 1027 | 1024 | 1041 | 1059 |
| I. Front Centre | 604 | 622 | 619 | 636 | 653 |
| J. Fork Offset | 65 | 65 | 55 | 55 | 55 |
| Stem | NA | NA | NA | NA | NA |
| Standover | 751 | 776 | 804 | 826 | 853 |
| Rider Height | 160–170 | 165–175 | 170–180 | 175–185 | >180 |
| Max / Tire Size F/R | 50/47 | 50/47 | 50/47 | 50/47 | 50/47 |
| Rear Caliper Mount | 25 | 25 | 25 | 25 | 25 |
All dimensions in millimeters unless noted (°). 700C clearances shown; 650B clearance 47 mm.
CHAPTER2 MANA-GRVL Integrated Cockpit — Geometry & Sizes
Helpful Links
Compare KAHA geometry to other gravel bikes on Geometry Geeks.
Browse compatible carbon wheelsets.
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