New-Old-Stock Suntour GPX Brake Caliper Set w/Rare Internal Return Spring

Description

New-Old-Stock Suntour GPX Single-Pivot Brake Caliper Set w/Rare Internal Return Spring
Thank you for your interest in this item and please visit our store for other offerings. We have very reasonable shipping terms and combine orders to save money (for customers) on shipping costs. We also maintain customer friendly return/refund/exchange policies.
Product Description:
This offering is for a new-old-stock set of Suntour GPX single-pivot brake calipers from the late 80's. They are an old style single-pivot (side-pull) model coming out of Japan when Suntour was still considered one of the more well respected manufacturer of bicycle parts. The caliper arms are made from a forged aluminum alloy, so they will be very strong/durable and designed to withstand high stress (competition-like) applications.
Although, the design feature that really distinquishes these calipers from most other models is the internal return spring. As noted in the pictures of the backside of the calipers, the return spring is not visible, which results in an extremely clean/finished look. This is due to a unique design and production process that allows for the return spring to effectively function inside the caliper arms. We've only noted this on one other single-pivot brake caliper...the Superbe Pro model from around this same area. Now we are not claiming these GPX calipers to be a Superbe Pro equivalent (because they are not), but they are still in the discussion as a very good quality (competition-level) brake caliper set from this era.
Other specs include a postal scale weight of 368 grams (both front and rear) and a reach in the 39 mm to 49 mm range. Please also note the chromoly steel hardware included with the calipers is designed for recessed frame/fork mounts (and the chrome finish on this hardware still shows well).
As for condition, the dark gray (painted) enamel still shows well and we see very little shopwear on our few remaining caliper sets.
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Note to international customers regarding shipping...
We apologize to those that feel some of our international shipping charges are too high. We only charge actual shipping rates, but once an order exceeds a certain amount, we hesitate to use the least expensive US Postal Services First Class International service. We feel this way, because this service is not trackable or insurable...so more risk of loss. We prefer the US Postal Services Priority Mail International service for more expensive orders, because this service is trackable at USPS.com and insurable...so less risk of loss. Unfortunately, this service is more expensive, especially for smaller/lighter packages, relative to the First Class International service. We are sorry about these higher shipping costs, but hopefully our notes help to explain why this is the case.
Note to international customers regarding customs...
We also apologize to those that feel their country import taxes, duties and brokerage fees are excessive. As a small US business, we are required by customs' laws to declare each order as a retail sale. Additionally, the declared order value must be equal to total store purchases and/or winning auction bids (less any shipping costs, as these are not considered in the declared value). As a result, each customer will be responsible for paying his/her own country taxes, duties and brokerage fees, which will be collected upon delivery. Again, we apologize for these additional costs, but we cannot afford the penalties and fines that come with breaking customs' laws...so we have to strictly abide by them.