Ranked by Euclidean distance across stack, reach, head-tube angle, mechanical trail, chainstay length, wheelbase, and bottom-bracket drop — all z-scaled so no metric dominates.
| Stack | 561 mm | Reach | 402 mm |
|---|---|---|---|
| Head-tube angle | 72.0 ° | Trail | 68.0 mm |
| Chainstay | 420 mm | Wheelbase | 1020 mm |
| BB drop | 80 mm | Type | Gravel |
| # | Bike | Δ | Stack | Reach | HTA | Trail | WB |
|---|---|---|---|---|---|---|---|
| 1 | Cervelo Aspero-5 2026 | 1.20 | 562 mm | 389 mm | 71.6 ° | 63.2 mm | 1019 mm |
| 2 | Factor Aluto 2026 | 1.23 | 575 mm | 398 mm | 72.0 ° | 61.2 mm | 1025 mm |
| 3 | Cervelo Aspero 2026 | 1.51 | 568 mm | 393 mm | 72.0 ° | 62.0 mm | 1019 mm |
| 4 | 3T Ultra 700c 2026 | 1.65 | 574 mm | 387 mm | 71.5 ° | 62.5 mm | 1020 mm |
| 5 | Ridley ASTR RS 2026 | 1.74 | 571 mm | 406 mm | 71.5 ° | 68.7 mm | 1043 mm |
| 6 | ENVE MOG 2026 | 1.79 | 576 mm | 393 mm | 71.3 ° | 66.0 mm | 1035 mm |
| 7 | Wilier Rave 2026 | 1.84 | 570 mm | 391 mm | 71.0 ° | 72.2 mm | 1029 mm |
| 8 | Specialized Crux 2026 | 2.04 | 569 mm | 393 mm | 71.8 ° | 65.5 mm | 1028 mm |
Across the 8 closest matches in the catalog the BMC Kaius 2026 fits a recognisable cluster of Gravel bikes. The neighbour set was selected only from the same bike-type bucket and only from models for which we have a full stack/reach/HTA/trail/chainstay/wheelbase/BB-drop record — so the distance numbers above are like-for-like, not apples-to-oranges.
The single closest geometric match is the Cervelo Aspero-5 2026, with a normalised distance of 1.1 mm of stack and 13.0 mm of reach separating the two. Riders who liked the position of one will almost always feel at home on the other.
BMC Kaius 2026 runs about 9.4 mm less stack than the median of its closest neighbours, so this is the more aggressive pick of the cluster — better for race fits, lower bar drops, and riders who want their stem closer to the steerer-tube cap.
BMC Kaius 2026 runs about 8.6 mm more reach than the median of its closest neighbours, so the cockpit is longer than its peers, which usually pairs well with a shorter stem and suits taller torsos.
BMC Kaius 2026 runs about 2.8 mm more trail than the median of its closest neighbours, so the steering is calmer and more self-centring than its peers — better for descents, loaded riding, and high-speed gravel.
Use the side-by-side comparison links below to drill in on any specific pairing. Every comparison page on RideDNA is computed from the same audited geometry tables that power this list, so the numbers will be internally consistent. If you'd rather start from your existing fit, the Fit Wizard takes a few of your current bike's measurements and re-runs this same nearest-neighbour search from your seat, not from a brand the manufacturer chose to compete with.
Method. Each of the seven metrics is z-scaled by its standard deviation across the candidate pool before being summed in the Euclidean norm. This avoids wheelbase (typically ±50 mm of variation) drowning out HTA (±2° of variation). We deliberately do not include subjective scores in this similarity calculation — the goal is geometric kinship, not handling kinship. Two bikes that share geometry but pair it with very different fork offsets or tyre clearances can still feel different on the trail; the Handling Index page is the better tool for that question.