Fat tire family · 6 platforms
Fat tire electric bikes for wholesale buyers.
Six 26-inch fat tire platforms with 4.0-inch tires, 36V and 48V options and 21-speed builds - published as a comparable specification set so a buyer can shortlist before the first quotation.
In short: a fat tire e-bike is defined by tire width, not motor power. This family is six 26-inch platforms running a 4.0-inch tire, all with a 350 W motor and either a 36V 8Ah or 48V 10Ah battery, a 21-speed or 7-speed drivetrain and mechanical disc brakes. Gross weight runs from 33 kg to 38 kg and carton size from 152 x 28 x 78 cm to 152 x 29 x 78 cm.
All values below are the minimum catalogue configuration. Final build, packaging and price are confirmed in the written quotation.
01 · Platform comparison
Compare the fat tire platforms.
Six platforms, one tire specification. The differences that matter for an order are frame material, battery system, gearing, weight and carton size.
| Platform | Wheel | Tire | Frame | Motor | Battery | Gears | Max speed | Gross weight | Carton |
|---|---|---|---|---|---|---|---|---|---|
| Catalog 55 | 26 in | 26" x 4.0" | Aluminum alloy | 350W / 36V | 36V 8Ah | 21-speed | 30 km/h | 35 kg | 152 x 28 x 78 cm |
| Catalog 45 | 26 in | 26" x 4.0" | Aluminum alloy | 350W / 36V | 36V 8Ah | 21-speed | 30 km/h | 35 kg | n/a |
| Catalog 17 | 26 in | 26" x 4.0" | High-carbon steel | 350W / 36V | 36V 8Ah | 21-speed | 30-50 km/h | 38 kg | 152 x 29 x 78 cm |
| Catalog 59 | 26 in | 26" x 4.0" | Aluminum alloy | 350W / 48V | 48V 10Ah | 7-speed | 30 km/h | 38 kg | 152 x 28 x 78 cm |
| Catalog 20 | 26 in | 26" x 4.0" | High-carbon steel | 350W / 36V | 36V 8Ah | 21-speed | 30-50 km/h | 33 kg | 152 x 29 x 78 cm |
| Catalog 50 | 26 in | 26" x 4.0" | High-carbon steel | 350W / 36V | 36V 8Ah | 21-speed | 30-50 km/h | 38 kg | 152 x 29 x 78 cm |
02 · Tire and wheel
Tire, wheel and packaging data.
Wide tires change three things a buyer has to plan for: ground contact, ride pressure and the volume each unit occupies in a container.
All six platforms run a 4.0 in wide tire on a 26 in wheel. Ask for the ETRTO marking on the sidewall if you need the exact bead-seat diameter for your market documentation, and treat a cited ETRTO value as authoritative over a nominal inch size.
Three platforms use an aluminum alloy frame and three use high-carbon steel. Frame material drives the weight difference you see in the table - 33 kg to 38 kg gross - which in turn drives freight cost per unit.
Published cartons sit between 152 x 28 x 78 cm and 152 x 29 x 78 cm. Container loading depends on how the cartons are palletised or hand-stacked and how spare parts are packed, so a container figure is calculated for the actual order rather than quoted as a fixed number.
03 · Starting platform
Catalog 55 configuration.
The platform most buyers start with in this family. The full specification set and the configuration boundaries are on the model page.
26 in wheel, 4.0 in tire, aluminum alloy frame, 350 W 36V motor, 36V 8Ah removable lithium battery, LCD display, 21-speed gearing, mechanical disc brakes. 35 kg gross weight and a 152 x 28 x 78 cm carton.
Published values are the minimum catalogue configuration. Model-level BOM, nameplate and test documents are provided with the quotation.
Open the full Catalog 55 specification ↗04 · Market fit
Check the market before you quote.
This table is a list of questions to resolve, not a compliance statement. Confirm every row against the current official text for your market before you publish a claim.
| Market | What the rules turn on | What to confirm before you sell |
|---|---|---|
| European Union / UK | 250 W assist limit, 25 km/h cut-off, EN 15194 + CE, GPSR (EU 2023/988) | Do not treat the published 350 W configuration as an EPAC. Confirm the power rating, assist behaviour and labelling you intend to declare. |
| Australia / New Zealand | EN 15194 label transition is being introduced state by state in Australia | Confirm the state-level requirement and the label your importer must apply before you list the model. |
| United States | 750 W limit with Class 1 / 2 / 3 definitions; UL 2849 requirements tightening | Confirm the class you are selling into, the state rules that apply and the battery listing your buyer expects. |
| GCC (UAE, Saudi Arabia, Qatar, Oman) | Import compliance is driven by local conformity schemes | Confirm the conformity route and the documents your customs broker requires for this platform and battery. |
A European pedal-assist cycle (EPAC) is limited to 250 W with assistance that cuts out at 25 km/h under EN 15194. A 350 W platform can still be quoted, but it cannot be presented as a compliant EPAC without reviewing the power rating, assist behaviour and labelling first. Ask for the model-level documents rather than assuming the published family specification will pass.
05 · Buyer checklist
Sourcing checklist for a fat tire order.
Ten items that remove most of the back-and-forth between a first enquiry and a quotation that can be approved internally.
- Confirm the tire width and the ETRTO marking you need - a nominal 4.0 in tire is not a specification until the bead-seat diameter is fixed.
- Decide the battery system - 36V 8Ah and 48V 10Ah platforms behave differently on range, weight and charger requirements.
- Choose the frame material per platform - aluminum alloy and high-carbon steel platforms differ by roughly 3 to 5 kg gross.
- Fix the target market before the model - the power class that can be sold depends on the market, not on the platform you like.
- Ask for the model-level document set - BOM, nameplate data and any test documents, mapped to the exact model and variant.
- Confirm how cartons and spare parts are packed - loading is calculated per order, not published as a fixed container count.
- Set the QC agreement in writing - full unit-by-unit inspection at the shipping location from 50 units, covering frame, motor, battery and accessories, before dispatch.
- Agree the Incoterm - DDP, CIF or FOB, confirmed for your destination port in the quotation.
- Plan spare parts - a 12-month limited warranty on the frame and a 6-month limited warranty on the battery against non-human damage; other components and spare-parts support are confirmed in the quotation, and continuity comes from a spare-parts set and technical guidance.
- Write the brief before the call - platform, market, quantity, customisation and documents in one message.
06 · FAQ
Fat tire procurement questions.
Answers to the five questions this family generates most often. The general buyer FAQ is on the support page.
What makes an e-bike a fat tire e-bike?
Which wheel and tire sizes are available?
Are these platforms legal to sell in the EU?
What is the minimum order quantity?
When is quality control carried out?
Send the platform, market and quantity.
Use the procurement brief to frame the family, the quantity direction and the documents you need. Replies within one business day, Monday to Saturday, GMT+8.
Last updated: 2026-09 · Catalogue reference v2026.9 · Specification source: factory catalogue reference. Commercial figures are confirmed in the quotation.