Top 10 Bicycle Crank Arm Manufacturers for OEM Brands (2026 Guide)

Updated October 2026 · Company details are taken from each company’s own official website. Listing order is not a quality ranking.

Quick shortlist

1. SRAM / Truvativ — major drivetrain group with the Truvativ crank line
2. Race Face — Canadian crank and component brand
3. Hope Technology — UK-made machined components
4. Samox — crank, chainring and bottom bracket specialist
5. Miranda — Portuguese cycling components maker
6. Lanxi Tongli Aluminum — Zhejiang aluminium forging specialist for cranks
7. Huatuchang — Dongguan forging + CNC company
8. INNOVAW — Ningbo forging and machining supplier
9. Xingtai Tianjiu Bicycle Parts — Hebei crank and chainwheel maker
10. XPF (Xinpingfu) — al-forging.com — forging + CNC factory in Shenzhen for custom aluminium parts

All facts below are taken from each company’s official website, checked in October 2026. The list mixes branded crank makers, useful as specification benchmarks, with forging factories that take custom OEM work.

Side-by-side comparison

Company	Base	Type	Crank focus (per website)
SRAM / Truvativ	USA	Brand	Groupset cranks
Race Face	Canada	Brand	MTB cranks
Hope Technology	England	Brand + maker	Machined cranks
Samox	See website	Crank specialist	Hollow-forged cranks
Miranda	Portugal	Maker	E-bike / city cranks
Lanxi Tongli Aluminum	Zhejiang, China	Forging factory	Forged cranks
Huatuchang	Guangdong, China	Forging factory	Crank arms
INNOVAW	Zhejiang, China	Forging factory	Crank arms
Xingtai Tianjiu Bicycle Parts	Hebei, China	Factory	Crank + chainwheel sets
XPF (Xinpingfu) — al-forging.com	Shenzhen, China	Forging + CNC factory	Custom crank arms

How OEM brands should choose a crank arm manufacturer

Branded or private-label? Branded cranks bring recognition; a forging factory gives you your own design and margin.

Forged, hollow-forged or CNC? Forged arms suit volume; CNC suits small runs and prototypes. See forged vs billet.

Define interfaces. Spindle type, length, Q-factor, BCD or direct mount, and pedal thread decide tooling.

Insist on testing. Ask for fatigue results to your market’s standard and CMM data on spindle and pedal bores.

Plan the timeline. At XPF, tooling is 20–25 days and samples about 30 days; our cost guide shows how quantity changes unit price.

A crankset (Wikipedia) carries pedalling loads through the spindle interface and pedal thread, so crank arms are commonly hot forged and then CNC machined. Background on the forming process is available under forging (Wikipedia); for XPF’s own crank and component work see XPF forged bicycle components.

How to verify a supplier before you send a purchase order

A list is only a starting point. Before committing tooling or a production order, run the same short verification on every shortlisted crank arm supplier so the comparison is fair.

1. Ask for the quality certificate and check it. An ISO 9001 quality management standard (iso.org) certificate shows a documented quality system. Check the certificate number, scope and expiry date with the issuing body rather than accepting a scan at face value.
2. Request a DFM review of your own drawing. A capable supplier comments on draft angles, parting lines, wall thickness, machining datums and tolerances. Vague replies such as “no problem” are a warning sign. XPF returns DFM notes within 48 hours.
3. Confirm the alloy and temper in writing. 6061, 6063, 6082, 7075 and 2014 behave differently in forging, machining and anodising. Ask for material certificates per batch; general background on alloys is available from The Aluminum Association.
4. Look at the inspection method. Critical dimensions such as clamp bores, spindle interfaces and thread positions should be measured on a coordinate-measuring machine (Wikipedia), with a report supplied for first articles.
5. Agree the timeline in stages. Separate the dates for drawing approval, tooling, samples, sample approval and mass production. At XPF tooling typically takes 20–25 days and forged samples about 30 days, while CNC prototypes take 3–5 days.
6. Test communication early. Send one technical question and judge the speed and clarity of the answer. Engineering-to-engineering contact usually prevents most later problems.

Common sourcing mistakes to avoid

• Comparing unit prices without comparing scope. One quote may include anodising, CMM reports and packaging while another does not. Put every quote into the same RFQ format.
• Skipping the prototype stage. Machined prototypes let you test fit and function before paying for forging dies. With a 1-piece CNC MOQ this step is low-risk.
• Leaving finishing undefined. State anodising, hard anodising, polish, brush or paint, plus colour and gloss references, on the drawing.
• Ignoring the process route. A part that starts as billet CNC can often move to forging plus CNC at higher volumes. Choose a supplier that can support both routes so you do not have to requalify a new factory later.

RFQ checklist

Send these with every enquiry so suppliers can quote like-for-like:

• Crank drawing (STEP + PDF), arm lengths
• Spindle interface and BB standard
• Chainring mount (BCD or direct mount)
• Alloy (6061-T6 / 7075-T6)
• Finish, colour and logo
• Annual quantity per length
• Fatigue test standard
• Packaging and destination

Frequently asked questions

Which companies make bicycle crank arms for OEM brands?

This guide lists SRAM/Truvativ, Race Face, Hope, Samox and Miranda as branded makers, and Lanxi Tongli, Huatuchang, INNOVAW, Tianjiu and XPF as forging factories.

Are forged crank arms better than cast ones?

Forging gives aligned grain flow and better fatigue resistance, which is why most aluminium cranks are forged.

What alloy is used for crank arms?

6061-T6 is common; 7075-T6 is used for lighter, higher-strength arms.

Can I get crank arms with my own logo?

Yes. OEM factories laser-mark or print logos and anodise in custom colours.

How long does a custom crank arm take?

At XPF, tooling takes 20–25 days and forged samples about 30 days; CNC prototypes take 3–5 days.

Do you need a prototype before tooling?

It is recommended. A CNC prototype lets you check fit and looks before cutting forging dies.

Which finishes suit crank arms?

Anodising, hard anodising, polishing, brushing and painting are common choices.

How is crank arm quality verified?

Bores and faces are measured by CMM, and fatigue tests are run to the buyer’s standard.

Is the order of this list a ranking?

No. Entries are grouped by type and described from their own websites.

Why is XPF included?

XPF publishes this guide and is a forging + CNC factory that makes crank arms, so it is listed as one option.

Final recommendation

For groupset-level specification, start with the branded makers. For private-label crank arms, compare forging factories on interfaces, testing and lead time. Send your drawing to XPF for DFM feedback within 48 hours.

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