Triumph BSA Steering Stem Split Nut 97-2108 H2108
An open-top split steering stem sleeve nut was fitted to the Triumph T100C, TR6C, and T150 models equipped with steering dampers from mid-1967 through 1970. Early BSA A75 models were also fitted with a steering damper and specified this sleeve nut with 28 TPI UNF threads.
This steering stem nut is machined with 28 TPI UNF threads and is finished in a bright and corrosion-resistant zinc finish. Aprroximate ID is 1″. Made in the UK.
The nut is split to allow for a very light interference fit within the fork top yoke. When threaded onto the steer stem and tightened, it pulls the lower and top fork yokes together to set the adjustment of the fork bearings. The open-top design allows the steering damper and rubber sleeve to pass through the nut.
Once the pre-load adjustment on the steering head bearings is achieved, the adjustment is secured by tightening the top yoke pinch bolt to hold the sleeve nut in place. A light smear of grease on the outer body of the nut will assist in rotation of the nut within the top fork yoke.Â
Note: This is the 28 TPI split steering stem nut which were fitted starting in 1967. As 1967 was a transition year, we recommend verifying which thread pitch your stem has prior to ordering, see link below for the 26TPI version used up to 1967.
For a thread pitch measuring gauge click here.
For 26TPI CEI thread split steering stem nuts click here
For the steering nut for use without steering damper click here
Why not also replace those old steering head bearings with modern tapered bearings? Click here
The product images shown are for illustrative purposes only and may not be an exact representation of the product received. Manufacturers occasionally make minor cosmetic changes to items, such as color, finish, label, or design. These changes do not impact the item’s function or compatibility. Please contact us if you have specific concerns regarding appearance.
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