BMC Kaius 01
Gravel Race · closest size 56
Aggressive
Stack +1 mm, reach +0 mm versus this frame’s size M.
US list price: $6,199 to $12,399
GRAVEL ALL-ROUNDER / MANUFACTURER CHART
A versatile carbon gravel frame with multiple mounting points.
Contender page chart · Terra M21e TEAM 1X build (2026-10-17)
built for riders who believe the best adventures begin where the pavement ends
Orbea describes a versatile carbon gravel bike for adventures beyond the pavement, with multiple frame mounting points for bottles, bags and gear, and fender-ready frame and fork. The page makes no bikepacking or racing claim and lists no rack. GnR assigns Gravel All-rounder, as it did for the Scott Addict Gravel. Gravel records take no tags.
Classification source: Orbea ↗. Read October 17, 2026.
Orbea Terra M21e TEAM 1X complete bike (SRAM 1x, Vittoria Terreno 700x45c tires per page). Model year: Not stated on page; image file names indicate 2027.
Displayed USD 6,614.00 on 2026-10-17 on Contender Bicycles, an Orbea dealer, as Ryan directed. It is a dealer price, not an Orbea page. Page stock label: Low Stock. Not an availability claim.
Manufacturer price source ↗. Reviewed October 17, 2026.
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Maker lists a multi-mount system (MMS) on the frame and fork, multiple frame mounting points for bottles, bags and gear, and a fender-ready frame and fork. No rack is listed.
Chart is the Orbea geometry table as shown on the Contender Bicycles page for the Terra M21e TEAM 1X (read 2026-10-17). Contender is an Orbea dealer. Orbea's own site could not be opened to cross-check it. The page says the fork clears up to 50C tires; no frame maximum is stated, so clearance is left blank.
Lengths are in millimeters. Head angles are in degrees. Frame stack and reach do not include the stem, spacers or handlebars.
| Size | Stack | Reach | Wheelbase | Head angle | Standover | Position |
|---|---|---|---|---|---|---|
| XS | 535 | 386 | 1031 | 69° | 690 | Aggressive |
| S | 558 | 392 | 1041 | 69.5° | 717 | Aggressive |
| M | 580 | 400 | 1052 | 70° | 743 | Aggressive |
| L | 602 | 406 | 1061 | 70.5° | 772 | Balanced |
| XL | 625 | 412 | 1072 | 70.8° | 801 | Balanced |
| XXL | 645 | 417 | 1081 | 71° | 828 | Balanced |
Aggressive longer reach than the fixed benchmark at this stack · Balanced within the benchmark band · Relaxed shorter reach than the benchmark at this stack
Source: Orbea manufacturer’s chart ↗. Checked October 17, 2026.
Each dot is one published frame size. The green band is GnR’s fixed geometry benchmark. Frames to its right have longer reach at the same stack (Aggressive); frames to its left have shorter reach (Relaxed). The benchmark does not change with bike type or catalog additions.
Each is the closest match to this frame’s size M (stack 580 mm, reach 400 mm) among current gravel frames from other brands.
Gravel Race · closest size 56
Aggressive
Stack +1 mm, reach +0 mm versus this frame’s size M.
US list price: $6,199 to $12,399
Gravel Race · closest size 56
Aggressive
Stack -2 mm, reach +0 mm versus this frame’s size M.
US list price: $3,999.99 to $14,999.99
Gravel Race · closest size ML
Balanced
Stack +4 mm, reach -1 mm versus this frame’s size M.
US list price: $8,199.99 to $11,999.99
Prices are the maker’s US list prices for complete bikes on the date shown, and include sale prices on that date. Ranges cover only the named builds, not every bike in a family. Framesets, tax and shipping are excluded. A displayed price, including an archived sale price, does not establish stock or a purchasable offer. Retailer prices and later changes are not tracked.
Use this exact chart as your reference, select your size, then explore similar dimensions or a deliberate position change. Confirm the frame generation matches your bike before using it.
Match this bike ↗Similar frame dimensions are a starting point. Saddle height and setback, seat-tube geometry, stem length and angle, headset spacers, handlebars and control position affect the completed bike. Review those details before buying.