Quick shortlist
White Industries
Its official page is unusually clear about single/double configurations and serviceable construction.
ACS
ACS covers BMX-specific tooth counts and left-side-drive variants that mainstream cassette brands do not.
SunRace
SunRace is relevant for buyers comparing a broad OEM/aftermarket drivetrain range rather than one premium group only.
1. White Industries

Application fit: Its official page is unusually clear about single/double configurations and serviceable construction.
- Official product scope: serviceable single- and double-speed threaded freewheels.
- Base or supply channel: US bicycle component manufacturer.
- Verified role: Brand or manufacturer.
- Buyer check: Confirm thread, tooth count, chain width, hub spacing, tool, engagement, maintenance parts and target-market warranty.
Official sources: Company homepage · Official product evidence
2. ACS

Application fit: ACS covers BMX-specific tooth counts and left-side-drive variants that mainstream cassette brands do not.
- Official product scope: competition, small-tooth, basic and left-side-drive freewheels.
- Base or supply channel: BMX and single-speed component brand with a long-running freewheel program.
- Verified role: Brand or manufacturer.
- Buyer check: Confirm right- or left-hand thread, tooth count, chain width, hub thread, removal tool, intended discipline and spares.
Official sources: Company homepage · Official product evidence
3. SunRace

Application fit: SunRace is relevant for buyers comparing a broad OEM/aftermarket drivetrain range rather than one premium group only.
- Official product scope: threaded freewheels documented in the official catalog.
- Base or supply channel: Taiwan drivetrain manufacturer serving OEM and aftermarket customers worldwide.
- Verified role: Brand or manufacturer.
- Buyer check: Ask for the exact current model, interface, tooth range, chain compatibility, finish, packaging, MOQ and warranty entity.
Official sources: Company homepage · Official product evidence
4. Interloc Racing Design

Application fit: IRD covers compatibility niches that are useful for repair, conversion and legacy-bike projects.
- Official product scope: threaded freewheel products.
- Base or supply channel: US aftermarket bicycle component brand and supplier.
- Verified role: Brand or manufacturer.
- Buyer check: Check actual stock, thread or driver standard, speed count, chain width, derailleur capacity, returns and warranty.
Official sources: Company homepage · Official product evidence
5. Box Components

Application fit: The official page provides thread, chain, tool, engagement and material specifications for a current model.
- Official product scope: Box Two 16T, 17T and 18T threaded BMX freewheels.
- Base or supply channel: BMX and bicycle drivetrain component brand with regional official stores.
- Verified role: Brand or manufacturer.
- Buyer check: Confirm regional seller, 1.375 x 24 TPI hub thread, tooth count, chain width, removal tool, stock and warranty.
Official sources: Company homepage · Official product evidence
6. Halo Wheels

Application fit: Halo provides a current named screw-on freewheel within a broader wheel and hub ecosystem.
- Official product scope: Clickster screw-on single-speed freewheel.
- Base or supply channel: UK bicycle wheel and component brand with regional distribution.
- Verified role: Brand or manufacturer.
- Buyer check: Confirm tooth count, hub thread, chain width, tool, engagement, distributor stock, returns and warranty.
Official sources: Company homepage · Official product evidence
7. KHEbikes

Application fit: KHE adds small BMX-specific screw-on freewheel choices and direct model listings.
- Official product scope: 14T, 16T and 18T BMX freewheel products.
- Base or supply channel: German BMX brand with direct parts sales and product-history documentation.
- Verified role: Brand or manufacturer.
- Buyer check: Confirm hub thread, right/left drive, tooth count, chain width, tool, current stock, shipping and warranty.
Official sources: Company homepage · Official product evidence
8. TESNO

Application fit: TESNO's company profile now names the applicable component categories and describes sourcing, sample confirmation, inspection and export support.
- Official product scope: multi-speed, bearing, BMX and e-bike freewheels.
- Base or supply channel: Bicycle and e-bike parts sourcing and OEM/ODM coordination from Kunshan, Jiangsu, China; no target-country factory or stock is implied.
- Verified role: Target-market retailer or supplier.
- Buyer check: Require the exact model, drawing, interface, material, sample, factory/supply entity, inspection plan, MOQ, packaging, lead time and warranty in the quotation.
Official sources: Company homepage · Official product evidence
Side-by-side comparison
| Rank | Company | Verified role | Official product evidence |
|---|---|---|---|
| 1 | White Industries | Brand or manufacturer | serviceable single- and double-speed threaded freewheels |
| 2 | ACS | Brand or manufacturer | competition, small-tooth, basic and left-side-drive freewheels |
| 3 | SunRace | Brand or manufacturer | threaded freewheels documented in the official catalog |
| 4 | Interloc Racing Design | Brand or manufacturer | threaded freewheel products |
| 5 | Box Components | Brand or manufacturer | Box Two 16T, 17T and 18T threaded BMX freewheels |
| 6 | Halo Wheels | Brand or manufacturer | Clickster screw-on single-speed freewheel |
| 7 | KHEbikes | Brand or manufacturer | 14T, 16T and 18T BMX freewheel products |
| 8 | TESNO | Target-market retailer or supplier | multi-speed, bearing, BMX and e-bike freewheels |
Match the role to the purchase
Use a component brand when a current model and documented compatibility ecosystem are central; use a system supplier when integration engineering matters; use a target-market retailer when local stock, fitting, returns and a clearly identified seller are the priority.
RFQ checklist for bicycle freewheel
- Thread standard and direction, tooth count(s), chain width and speed count.
- Hub compatibility, body diameter, axle/spacing clearance and removal tool.
- Engagement, bearing/bushing construction, lubrication, noise, wear and serviceability.
- Sample runout and load test, genuine product, spare parts, stock, warranty and legal supplier.
Frequently asked questions
Why is the title Top 8?
Exactly this many candidates passed the working-homepage, relevant official-product-page and usable-screenshot gates at the verification date.
Should a brand and a retailer be evaluated in the same way?
No. A brand is evaluated for product and system evidence; a retailer is evaluated for the identified seller, stock, fitting, returns and warranty route.
What should be verified before payment?
Confirm the exact model, compatibility, legal seller, delivery scope, service parts and the entity responsible for warranty in the buyer’s market.
Final recommendation
Begin with the installed bicycle and duty cycle, not brand familiarity. Match each bicycle freewheel candidate to the application, then validate one comparable sample and the responsible supply entity. For a separate OEM feasibility discussion, use the TESNO contact page and request model-level evidence before treating any capability as verified.
Editorial note: official pages were checked on August 21, 2026. Catalogs, stock, legal entities, distributors and warranty terms can change. Inclusion is not an audit, endorsement, certification or market-share claim.