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Installing the G-SUSPENSION300: Replacing the Rear Suspension on an SR400

Installation steps for the G-SUSPENSION300 rear suspension. Using an SR400 as an example, we explain the process in 8 steps, from loosening the passenger footpegs and removing the stock suspension to fitting this product and re-tightening.

G-SUSPENSION300の取り付け手順 ― SR400でのリアサスペンション交換
What you'll learn in this article
  • Steps for removing the stock rear suspension
  • Fitting the shock collars and inserting the G-SUSPENSION300
  • A small trick to make the top easier to fit

The G-SUSPENSION300 is a rear suspension that fits a wide range of models, including the SR400/500, 250TR, Estrella, Grasstracker, CB400SS, W400/650, GB250 and SRV250.

Using an SR400 installation as an example, this page shows the replacement process. Note that the steps may differ slightly depending on the model.

01 Removing the stock suspension

  1. Put the bike on its center stand.
    G-SUSPENSION300の取り付け手順 ― SR400でのリアサスペンション交換
  2. Loosen the left and right passenger footpegs.
    G-SUSPENSION300の取り付け手順 ― SR400でのリアサスペンション交換G-SUSPENSION300の取り付け手順 ― SR400でのリアサスペンション交換
  3. Remove the nuts and washers from the stock suspension.
    G-SUSPENSION300の取り付け手順 ― SR400でのリアサスペンション交換
  4. Remove the stock suspension. Moving the wheel up and down slightly makes it easier to remove.
    G-SUSPENSION300の取り付け手順 ― SR400でのリアサスペンション交換G-SUSPENSION300の取り付け手順 ― SR400でのリアサスペンション交換

02 Installing the G-SUSPENSION300

  1. Fit the bottom of the product (G-SUSPENSION300) to the swingarm. If shock collars are included, fit them first and then insert the suspension. Don't push it all the way in; leaving it slightly out makes the top easier to fit.
    G-SUSPENSION300の取り付け手順 ― SR400でのリアサスペンション交換
  2. Lifting the wheel with your right hand, insert the top of the suspension.
    G-SUSPENSION300の取り付け手順 ― SR400でのリアサスペンション交換G-SUSPENSION300の取り付け手順 ― SR400でのリアサスペンション交換
  3. Fit the washers and nuts.
    G-SUSPENSION300の取り付け手順 ― SR400でのリアサスペンション交換G-SUSPENSION300の取り付け手順 ― SR400でのリアサスペンション交換G-SUSPENSION300の取り付け手順 ― SR400でのリアサスペンション交換
  4. Re-tighten everything with tools, and the installation is complete.
    G-SUSPENSION300の取り付け手順 ― SR400でのリアサスペンション交換
Notes

Use thread-locking compound as needed during installation. General explanations such as how to use tools are omitted. Due to variation between individual bikes, some minor adjustment or improvisation may be needed. If you're unsure about the replacement, always have it done by someone knowledgeable or a custom shop. For questions or anything unclear, please contact us via the contact form.

*Installation is at your own risk. If you're unsure about doing the work yourself, we recommend consulting your local motorcycle shop.
*The content and photos reflect the time of writing. Please check each product page for current specifications, fitment and stock.

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