Yoeleo Altera G21 DB

Frameset ships as "G21 Frame, Fork, Handlebar, Seatpost". DEFAULT COCKPIT = H21 CARBON INTEGRATED HANDLEBAR (one-piece bar/stem, T800; yoeleobike.com spec table row "Handlebar: H21 carbon integrated handlebar"): stem 80/90/100/110 mm x hood width 400/420/440 mm (all 12 combinations are SKUs on https://www.yoeleo.com/products/h21-carbon-integrated-handlebar), angle -10.2 deg, reach 80 mm, drop 120 mm, flare 30.4 deg total per the H21 geometry drawing (https://www.yoeleo.com/cdn/shop/files/H21_geometry.jpg; the page copy calls it "15.2 deg flare", i.e. per side), drop-end width 460/480/500 mm for hood width 400/420/440, 28.6 mm steerer, weight 375-376 +/-15 g (the yoeleobike.com spec table says 360 +/-15 g for 420x90 - discrepancy), "comes with Computer Holder, Spacers for rounded 1-1/8 inch (28.6mm) steerer, Top cap and outer cable bearing cover"; H21 fits a 52 mm headset bearing diameter. H21 stem stack height NOT published. OPTION 2 = H9 integrated (listed on the G21 page under Handlebar Options): stem 90/100/110/120 mm x width 380/400/420/440 mm, angle -7 deg, reach 80 mm, drop 125 mm. OPTION 3 = ST1 stem + H25 gravel bar (two-piece): H25 hood width 400/420/440 mm (drop width 500/520/540 mm), reach 74 mm, drop 114 mm, 31.8 mm clamp, 240 g; ST1 carbon stem 90/100/110/120 mm, -10 deg, stack height 30 mm, 28.6 mm steerer, 140 g (specs from https://www.yoeleo.com/products/best-gravel-carbon-handlebar and https://www.yoeleo.com/products/carbon-stem-st1). OPTION 4 = "Without Handlebar": the frameset then comes with a bearing cover that accepts a traditional bar with internal cabling. The yoeleo.com frameset configurator only has Frame Size and Color options (no cockpit choice, no per-size default stem length or bar width), so stock_stem_length and stock_bar_width are null. SPACERS: yoeleobike.com frameset spec table "Handlebar Spacers: 3mm x1, 5mm x1, 10mm x2; Headset Bearing Cap 10mm x1" (i.e. 28 mm of spacers supplied above a 10 mm bearing cap); the yoeleo.com box list just says "Handlebar Spacer*1"; the separately sold "Yoeleo Standard Spacer Set" is a 10 mm bearing cover + 3 + 5 + 10 mm spacers + 10 mm top spacer. Maximum spacer height NOT published; top cap height NOT published. HEADSET: straight 1-1/2 in head tube, fork 1-1/8 to 1-1/2 in tapered, "Headtube Bearings*2" in the box (spares sold as "7mm Headset Top Bearing" and "8mm Headset Bottom Bearing", no dimensions given). SEATPOST: YOELEO Pro-Flex seatpost, round 27.2 mm (changed from the previous G21's D-shape), 95.2 g without clamp, seatpost clamp included, accepts third-party or dropper posts; seatpost length and offset/setback NOT published (the R11/G21 Seatpost spare page has no spec text).

STACK/REACH DATUM: drawing D is a vertical from the BB centre up to the level of the head tube top, C a horizontal from that vertical to the head tube top centre - i.e. the usual BB centre to head tube top-centre convention. TOP TUBE: labelled "TOP TUBE LENGTH(mm)" with no "effective" qualifier; drawing B is a horizontal from the head tube top to the seatpost line, so recorded as effective - uncertain. HEAD TUBE ANGLE DISCREPANCY: the frameset table (yoeleo.com, and the identical table on https://www.yoeleobike.com/products/altera-g21-gravel-frameset) gives G = 69/69.5/70/70/71/71/71 deg, but the maker's own complete-bike page https://www.yoeleobike.com/products/racing-bikepacking-carbon-gravel-bike ("Altera G21 DB Gravel Bike 12S", same table otherwise) gives 72.2/72.3/72.6 deg for 56/58/60. I recorded the frameset page's values and flag the alternative; see collector_notes for a consistency check. SIZE NAMES: sizes are named by nominal seat tube length in cm (45, 49, 52, 54, 56, 58, 60; product options "45cm" etc.). Official rider-height row in the same table: 45 = 160-168 cm, 49 = 165-175, 52 = 172-180, 54 = 177-185, 56 = 182-190, 58 = 187-196, 60 = 193-201. MODEL YEAR: not stated on the page; the brand distinguishes "G21 2023" (previous generation, D-shaped post; the fork spare page says "Fork for G21 2023 and Altera G21 frameset") from the Altera G21, whose yoeleobike.com product was published 2025-04-10, whose yoeleo.com product record dates 2025-09-12 (a store migration date shared by every product), whose geometry image asset is v=1758162507 (2025-09-18), and whose blog "The Story Behind YOELEO ALTERA G21" is dated 2026-01-10; page live and table current when fetched. Treat as the 2025-launched generation, but model_year is left null because no year is published. FRAME FACTS: Toray T800 UD carbon, T47 inboard-bearing BB (86.5 mm on yoeleo.com, 85.5 mm on yoeleobike.com), straight 1-1/2 in head tube, 12x142 rear / 12x100 front thru axles, UDH, flat mount, 1x max 42t (44t wide spindle), 700x53 mm or 650Bx2.1 in max tyre (1x setup), 4 bottle mounts, mudguard and rack compatible, top-tube and down-tube storage, frame weight Champagne 1170 g / raw 1050 g (yoeleo.com) or raw 1150 g (yoeleobike.com) size 56, fork 480 g, rider weight limit 125 kg, UCI approved (yoeleobike.com), price USD 1420 all sizes (2026-08-28). Colours: Champagne, Prism Blue, Artisan Black, Panda Purple (separate product pages, same table), Custom Painting.