Quick answer: A rear brake-light switch should be matched by its mounting point, spring geometry, wire connector and the exact vehicle version—not by appearance alone. The current catalog includes a spring-operated, two-wire rear brake-light switch listed with a 50–110 cc ATV reference. Voltage, terminal pinout, thread size and switching behavior are not stated, so ask the supplier to confirm them before a bulk order.
For a wholesale RFQ, send a clear photo of the installed switch and its connector, the vehicle model and year, and any readable part reference. Ask for the mounting dimensions, wiring diagram or pinout, MOQ by SKU, sample terms, current unit price and lead time in writing. A product title is a starting reference, not proof that the switch fits every vehicle in a model family.
What does the current listing actually confirm?
The two-wire rear brake-light switch listing identifies a spring-operated switch and a two-wire arrangement. The listing names a 50–110 cc ATV reference. Its current description does not provide the operating voltage, cable length, mounting-thread dimensions, pinout, contact rating or a vehicle-by-year fitment chart. Treat each missing field as a question for the quotation instead of filling it with a value from a similar switch.
The listing currently displays an MOQ of 100 sets and an indicative unit price. Those commercial terms may change and shipping is separate, so request a dated quotation before you promise a landed cost to your buyer. Ask whether MOQ applies per switch, per package, or per selected connector version. Keep the answer beside the SKU in the purchase order.
How can a buyer identify the correct mounting style?
Start with an uninstalled sample if one is available. Record the thread diameter and pitch, the usable threaded length, shoulder or stop position, overall body length, and the direction in which the switch enters its bracket. If the switch is retained by a nut, photograph both sides of the bracket and measure the opening. If it clips into place, show the clip and its locking features from two angles.
Take one photo with a ruler in the same plane as the part and another close-up of the mounting point on the vehicle. A photo of the switch alone often hides whether the bracket, spring or adjacent pedal limits its movement. Do not infer mounting dimensions from the 50–110 cc reference; the reference does not define a universal bracket design.
What should be checked about the spring and pedal movement?
Photograph the spring at rest and while the brake pedal is released, if this can be done safely. Record where each end attaches, the hook direction, free length and the switch travel required to change state. Note whether the spring is straight, hooked, looped or uses a special end. These measurements describe the buyer’s installed sample; they are not confirmed specifications for every version of the catalog item.
Ask the supplier to confirm the spring material, finish and replacement availability only if the buyer requires them. A visual color or coating description does not establish material grade or corrosion performance. When a switch and spring are supplied as a set, make the quotation state whether both are included and identify the exact set configuration.
How should the two-wire circuit be confirmed?
Two wires do not by themselves identify polarity, connector pinout, voltage, current capacity or whether the switch is normally open or normally closed. Provide a close-up of the connector face, wire colors, terminal orientation and any marking on the existing part. Ask for a drawing that labels the two terminals and explains the switching condition. Confirm whether the replacement is intended to work with the buyer’s existing harness and lamp circuit.
Request the rated voltage and electrical contact rating in writing. If the circuit or connector changes, ask for a sample and let a qualified technician verify operation on the intended vehicle before approving mass production. Do not bridge wires or test an unknown circuit by guesswork; electrical checks should follow the vehicle service procedure.
Which vehicle details belong in the RFQ?
Send the make, exact model, model year, engine or frame code where available, destination market and left/right or front/rear position if the system has variants. Include a photo of the old switch in place, a photo of its connector, and a photo of any part-number label. If the buyer only has a sample, state that clearly and request a dimensioned drawing for approval.
The current listing’s 50–110 cc ATV reference is narrow evidence. It does not confirm fitment on every 50–110 cc ATV or on unrelated motorcycles. If a distributor wants to sell the switch under a broad model list, ask the supplier for a written application chart or compare samples against each intended version before publishing that claim.
What should sample approval and incoming inspection cover?
Before scaling an order, compare a supplier sample with the approved old part or drawing. Check the mounting thread and length, body clearance, spring anchor shape, connector fit and visible wire condition. Use the approved circuit procedure to confirm that the switch changes state at the intended pedal position. Record the sample label, measurements, test result and approval date so that the same revision is used for production.
At receiving, count the units by SKU and package, check connector consistency, inspect the springs and mounts, and retain a small sample from the lot. Photograph any variation before the cartons are mixed. For brake-related electrical parts, have a qualified technician confirm the fit and function on the intended vehicle before the part is put into service.
How should wholesale MOQ, price and packing be compared?
Request price breaks by quantity and keep each mounting or connector version on a separate quotation line. Ask whether the quoted MOQ is per SKU, color, connector or carton. Confirm sample cost, production lead time, payment terms, individual packing, inner-pack quantity and carton markings. Ask for gross weight and carton dimensions if the buyer needs a freight estimate; do not treat a listed item measurement as a shipping-carton measurement.
When comparing offers, compare the same switch configuration and the same included spring or hardware. A lower unit price is not comparable if one offer excludes the spring, uses a different connector, or leaves the electrical rating unconfirmed. Record the quote date and ask the supplier to reconfirm price and availability before payment.
What should a complete RFQ message include?
- Product listing or buyer SKU, requested quantity and destination country.
- Vehicle make, model, year, engine/frame reference and installed position.
- Photos of the old switch, mounting point, spring and connector face.
- Measured thread, usable length, bracket opening and spring-end geometry, if available.
- Requested voltage, pinout, contact rating and switching condition for supplier confirmation.
- Sample quantity, MOQ per configuration, current unit price and lead time.
- Packaging, inner-pack count, carton dimensions, gross weight and shipping quotation.
- Written fitment basis, drawing revision and sample-approval procedure.
Separate known facts from unanswered questions. If a dimension or circuit property is unknown, write “supplier to confirm” and ask for evidence instead of copying a number from a different model.
Frequently asked questions
Does a two-wire switch fit any 50–110 cc ATV?
No. Wire count and engine displacement do not define the mount, spring travel, connector, voltage or vehicle harness. Match the exact model and mounting evidence with the supplier before buying.
Is the switch’s operating voltage confirmed?
The current listing identifies a two-wire spring-operated switch, but does not state its operating voltage or contact rating. Ask for these details and a wiring or pinout confirmation in writing.
Can the buyer order based on a product photo?
A photo helps identify the shape but does not prove dimensions or electrical compatibility. Use a sample, measurements and a written fitment confirmation for the first order.
Next step for a wholesale buyer
Open the current rear brake-light switch listing and send the exact vehicle reference, connector photos and mounting measurements with your RFQ. For the mechanical actuator, the separate rear brake lever arm and shaft listing is a different part; do not treat it as a substitute for the switch. Ask for the dimensions, circuit details, MOQ, price and packing to be confirmed against the same sample before approving a bulk order.
Related catalog: Browse the motorcycle brake components category. For a wholesale RFQ, include the motorcycle model/year and switch mounting or connector photos, the exact part reference or clear photos, and target quantity so fitment and order terms can be confirmed.