State Bicycle Co. 4130 Road v2 Handlebar: Read Width, Drop and Reach Without Hiding the Stem Conflict
The State Bicycle Co. 4130 Road v2 handlebar is listed as 420mm wide, with 125mm drop and 80mm reach. These are three separate bar dimensions. The accompanying stem records also contain an unresolved material conflict, so a careful cockpit enquiry should retain the source wording rather than merge the entries.

Read the State Bicycle Co. 4130 Road v2 handlebar fields
The product page describes an aluminum drop bar. Its 420mm width, 125mm drop and 80mm reach provide a useful starting record for comparing a stated assembly. Keep each label beside its number. Bar reach is not frame reach, and a listed bar width does not describe the entire assembled riding position.
The source does not explain a measuring convention for every one of these dimensions. This guide therefore quotes the fields as published instead of inventing an outside-width conversion or deriving a new hand position. A description of the actual installed bar is still needed if the bicycle has been changed.
Preserve both stem-material descriptions
The product page names an SBC 3D-forged alloy stem with a 31.8mm clamp. The PDF overview likewise uses 3D-forged alloy wording. Its detailed stem section, however, says “Steel”. No explanation accompanies that difference, and these records do not establish a date or reason for a component change.
The native Black & Tan Road v2 listing is the concrete reference for this enquiry. Its existence does not resolve the manufacturer’s conflicting stem-material descriptions. The catalogue listing is State Bicycle Co. 4130 Road v2 - Black & Tan - (8-Speed).
Keep stem length and rise attached to their entry
The PDF’s detailed stem record lists 90mm length, a 31.8mm clamp diameter and plus/minus seven-degree rise. The clamp number is different from the bar’s 420mm width. Similar-looking numbers in a cockpit list need their component names, not a single unqualified “handlebar size” heading.
When asking about a particular assembly, identify the bicycle, its bar and stem markings, and the document being compared. The published dimensions do not prescribe a personal handlebar height or approve an arbitrary stem swap. The historical Contender photo is separate brand context and cannot show which stem a current Road v2 carries.
The broader State material remains useful for understanding the family behind this cockpit record. State Bicycle Co. topic; existing State introduction.
FAQ
Does 80mm describe the stem length here?
No. It is the listed handlebar-reach value.
Do all the stem entries agree on material?
No. Alloy wording and a Steel entry both appear.
Do these dimensions prescribe an individual riding position?
No. They record equipment rather than a personal setup.
Sources
Manufacturer Road v2 product record (https://www.statebicycle.com/products/4130-road-v2-black-tan-8-speed). Manufacturer Road v2 specification PDF (https://cdn.shopify.com/s/files/1/0232/3305/files/2026-4130-Road-SizeSpec-FixedHeight.pdf?v=1791313727).
Photograph credits and permissions
Photograph 1
Original title: IMG_6798
Creator: pstmn; creator URI: https://www.flickr.com/photos/post_man
Copyright notice: Embedded EXIF and XMP retain the literal placeholders “Photographer:” and “Copyright:”; these are not names of different people. Embedded sRGB IEC61966-2.1 colour-profile notice: Copyright (c) 1998 Hewlett-Packard Company. This is the colour-profile owner, not the photographer.
Original source URI: https://www.flickr.com/photos/post_man/16587024389/
License / permission: CC BY 2.0
License / permission URI: https://creativecommons.org/licenses/by/2.0/
Modification notice: Original Flickr-downloaded JPEG bytes retained with no local crop, recompression or colour edits. EXIF and XMP retain Adobe Photoshop Lightroom 5.3 (Windows), a RAW-to-JPEG derived event, and the 19 January 2015 save event; earlier processing is unassessed.
Source disclaimer: Historical State Contender owner build as described by the source, with custom wheels and hubs; Walter is the owner, not the credited photographer. Related State Bicycle Co. context only, not a photograph of current Road v2 Black & Tan or proof of its colour, dimensions, parts, material, condition, fit or compatibility. Capture and upload dates do not establish bicycle model year. Exact licence: Creative Commons Attribution 2.0 Generic. No endorsement or warranties are implied; other rights may apply. The unchanged photograph remains under CC BY 2.0; no additional restrictions are imposed.