Oct 8, 2026OEM Development & Quality

What to Prepare Before a Bike Bag Factory Can Sample Your Design

The nine items a bike brand should send before sampling — drawings, mounting photos, rack measurements, fabric and hardware preferences — and how each one changes the sample you get back.

Most disappointing samples trace back to the same cause: the factory had to guess. When a sample misses the mark, it is usually not the stitching — it is a missing dimension, a mounting photo taken from the wrong angle, or a hardware choice nobody confirmed.

The short answer: send nine things

  1. A drawing or sketch with overall dimensions: length, width, height, and any tapered sections.
  1. Mounting photos: the bike and the rack or frame area, from more than one angle, with a ruler visible in the frame.
  1. The bicycle model or frame size, so the factory can cross-check the geometry.
  1. Fabric preference, or a clear "please recommend", with the conditions the product will see: rain, sun, abrasion, cold.
  1. Hardware preference: zipper brand and type, buckles, webbing — or acceptance of the factory standard set.
  1. Colour references and logo files: vector if available; a photo of the existing product works as a fallback.
  1. Target quantity: the initial order, and the expected repeat volume.
  1. Target price and the market it sells in — these decide which materials and constructions are realistic.
  1. Any fixed deadline, and the inspection or documentation requirements your market needs.

Why each item changes the sample

Drawings and measurements set the pattern. A top tube bag drafted around a straight tube will gap on a tapered frame — a measurement you can supply in one minute saves a full sample round.
Mounting photos prevent the most expensive rework. Strap positions, clearance for cables, and how the bag sits when partly loaded are all decided here, not in the pattern room.
Fabric conditions are specification, not preference. A cover selling into a rainy city and one selling into a dry market can share a pattern and still need different coatings — PU and TPU coatings carry different hydrostatic ratings, and the price difference is real.
Hardware by name makes your sample verifiable. YKK zippers, FIDLOCK buckles and Duraflex hardware are specified by brand for a reason: your buyers can check the components themselves.
Quantity sets the method. MOQ 30 pcs for ready styles and 300 pcs for custom designs reflect different tooling and cutting runs — telling the factory which one you are planning keeps the quote honest.
Price and market keep the sample realistic. A premium retail line and a value line need different fabrics, hardware and finishing. Sampling to the wrong price point wastes the round.

A checklist you can copy

Before sending a brief, tick these: drawing with dimensions; two or more mounting photos with a ruler; bicycle model or frame size; intended fabric or usage conditions; hardware preference or recommend; colour and logo files; initial and repeat quantities; target price and market; fixed deadlines or market requirements.

What you get back

A complete brief produces a sample that arrives with the right dimensions, the parts you asked for, and a quotation built on the same assumptions you made. Samples ship 7-12 days after the drawing, materials and hardware are confirmed — most of that time is production, not decision-making.

Discuss your OEM / ODM project with Yagoobag

Send your drawing, photos and target quantities, and we reply with next steps for sampling. Write to cocoxu@colorwaybag.com or message us on WhatsApp with your design.