People often ask as the best way to improve performance, we say one thing. Chain line.
The distance from the center of the frame to the center of the chainring should be 42 mm ± 2 mm, depending on your configuration.
This product responds to a request to manufacture a gauge that instantly measures this chain line standard which exists in the Professional state of the Japanese Keirin.
To use this nifty tool, just place the V-groove of the gauge on the seat tube, and use the center line of the V-groove. The base measurement of 42 mm is at the center line of the protrusion and the thick line extending 2 mm to the left and right from the center line of the protrusion showing ± 2 mm.
The burrs on the product are removed by hand, leaving some edges to improve workability.
When measuring, be careful not to damage the seat tube with the cross section of the V groove.
This gauge was made as a gauge for inspecting the body of NJS. It may not be possible to measure correctly depending on the design or seat tube and/or width of the BB shell.
Manufacturing Advisor: Mr. Kenji Ishii, Maebashi Bicycle Racetrack Inspector.
SPECIFICATIONS
Material: Stainless steel
Fast Shipping and professional packaging
We offer a wide range of shipping options due to our long-standing partnerships with UPS, FedEx and DHL. Our warehouse staff is highly trained to pack your goods exactly according to the specifications we provide. Before shipment, all items are thoroughly inspected and safely secured. We ship to hundreds of thousands of customers every day across various countries. Our dedication to becoming the largest online retailer in the world is shown by this. The distribution centers and warehouses distribution are situated in Europe and the USA.
Please note that orders with more than one item are given a processing time according to the item.
Before shipping, our team will perform a thorough inspection on the products you ordered. The majority of orders will be sent within 48 hours. The estimated delivery time is 3 to 7 days.
Returns
The stock is dynamic and we are unable to control it completely due to the fact that many parties are involved, which includes our warehouse and factory. The stock can change at any moment. It's possible that you may not receive your order after it has been placed.
Our policy is for 30 days. If you don't receive your item within 30 days, we're not able to issue either a return or exchange.
To be eligible for a return your item must be unused and in the same condition as you received it in. The item must be returned in its original packaging.
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