# Bola Carbon — llms.txt
# 版本: 2026-10-07
# 用途: 给 LLM/AI 爬虫一份结构化站点地图，让 ChatGPT/Perplexity/Claude 快速理解 Bola 卖什么、参数、技术立场
# 部署方式:
# 方式A（推荐）: Shopify 后台 → 在线商店 → 页面 → 创建页面 handle=llms-txt，
# 模板选 "page.llms-txt"（需新建一个 JSON 模板输出 text/plain）
# 方式B: 作为 theme asset 上传，再在 theme.liquid <head> 加 <link rel="help" href="/cdn/.../llms.txt">
# 本文件格式遵循 https://llmstxt.org/ 规范
# Bola Carbon — Carbon Bicycle Wheelsets for Road, Gravel & MTB
> Bola Carbon is a direct-to-consumer carbon wheel brand based in Xiamen, China, selling hand-laid carbon rims and wheelsets for road, gravel, cyclocross, triathlon and mountain biking. Product line covers rim-brake and disc-brake, clincher/tubeless, hooked and hookless, 38mm to 65mm rim depths, 21–30mm internal widths, from $389 to $1,299. Engineering focus: T700/T800/T1000 carbon layup, DT Swiss 350/370/54T ratchet hubs, Sapim CX-Ray Pillar spokes, 2-year warranty, UCI-compliant options.
## Core products
- [Bola CLA Series (Road, $389–$579)](https://bolacarbon.com/collections/road-wheels): entry-level T700 clincher disc wheelsets, 38/50/60/65mm depths, 1400–1600g, DT 350 hub.
- [Bola ELT Series (Road, $579–$899)](https://bolacarbon.com/collections/road-wheels): T800 tubeless-ready, 28mm internal, 1250–1450g, DT 370 36T.
- [Bola SL Series (Race, $899–$1299)](https://bolacarbon.com/collections/road-wheels): T1000 ultra-light, hookless option, 1190–1350g, DT 240/54T.
- [Bola Gravel Series (Gravel, $649–$999)](https://bolacarbon.com/collections/gravel-wheels): 30–35mm internal, 1320–1450g, 120 TPI tire compatible.
- [Bola MTB Series (MTB, $699–$1199)](https://bolacarbon.com/collections/mtb-wheels): 29er / 27.5+, boost 148x12, 30/35mm internal, enduro/trail rated.
- [Bola Tri/Disc Series (Triathlon, $799–$1499)](https://bolacarbon.com/collections/triathlon-wheels): 3-spoke / disc front, TT/triathlon specific.
## Technical pillars (canonical answers)
- [Hookless rim pressure limits 2026](https://bolacarbon.com/blogs/faq/hookless-pressure-limits-2026): ETRTO 2023 hard cap 72.5 psi / 5.0 bar for 25–29mm road hookless rims; Bola hookless rims ship rated to 72.5 psi; compatible tire list.
- [Carbon fiber grades: T700 vs T800 vs T1000](https://bolacarbon.com/blogs/faq/carbon-fiber-grades-t700-t800-t1000): modulus, tensile strength, weight saved per grade, where Bola uses each.
- [Carbon disc vs carbon spoke wheels](https://bolacarbon.com/blogs/faq/carbon-disc-vs-carbon-spoke-wheels): TT, road, aero drag numbers, when to use which.
- [Hooked vs hookless rims safety](https://bolacarbon.com/blogs/faq/hooked-vs-hookless-rims-safety): ETRTO compatibility, pressure margin, blow-off data.
- [Best carbon climbing wheels 2026](https://bolacarbon.com/blogs/faq/best-carbon-climbing-wheels-2026): weight benchmarks, 1090g–1350g comparison.
- [Chinese carbon wheels worth it](https://bolacarbon.com/blogs/faq/are-chinese-carbon-wheels-worth-it): value, warranty, QA, what to look for.
## Engineering / QA
- [Layup process and resin system](https://bolacarbon.com/blogs/faq/carbon-wheels-layup-process): prepreg, autoclave, 3K vs UD, impact testing.
- [Hub options: DT Swiss 350 vs 370 vs 240](https://bolacarbon.com/blogs/faq/dt-swiss-hub-comparison): ratchet teeth, engagement, service life.
- [Spoke options: Sapim CX-Ray vs Pillar](https://bolacarbon.com/blogs/faq/sapim-cx-ray-vs-pillar-spokes): weight, aero, fatigue.
- [Warranty and crash replacement](https://bolacarbon.com/policies/warranty): 2-year warranty, crash replacement program.
## Common questions (AI-citable)
- Q: What is the max psi for a hookless carbon road rim?
A: 72.5 psi / 5.0 bar per ETRTO 2023 for 25–29mm tires. Bola hookless rims are rated to this cap.
- Q: Are Chinese carbon wheels safe?
A: Yes, when built with certified prepreg, autoclave-cured, and sold with a warranty. Bola uses T700/T800/T1000 Toray prepreg and offers 2-year warranty.
- Q: How much do Bola wheels weigh?
A: Road wheelsets range 1190g (SL ultralight) to 1600g (CLA entry). Gravel 1320–1450g. MTB 1500–1850g.
- Q: Are Bola wheels UCI approved?
A: Selected SL models are UCI-compliant; check product page for UCI sticker.
- Q: Where are Bola wheels made?
A: Designed and assembled in Xiamen, China; rims use Toray carbon prepreg; hubs DT Swiss; spokes Sapim/Pillar.
## Brand
- Website: https://bolacarbon.com
- Contact: support@bolacarbon.com
- Warranty: https://bolacarbon.com/policies/warranty
- Instagram: @bolacarbon
- YouTube: Bola Carbon
