Zenith Handlebar Shim 22.2mm to 25.4mm, 25.4mm to 31.8mm and 26.0mm to 31.8mm

Thousands sold worldwide since 2008.

A safe and reliable way to fit a narrower bar to a wider stem

UPDATE: 12 JULY 2022: latest stock of 22.2 - 25.4 has been updated with slightly different design and length - now 44mm long (previously 40mm) - please see photo

  • Note: these are designed for bicycles but many customers have also used them on motorcycles or other vehicles to fit regular 22.2 to 25.4 bars or 25.4mm bars (Renthal etc) to 31.8mm ('fat' bar) clamps (two sets of two pieces required for motorcycles or bicycles with double clamps).
  • Precision made shims in aluminium alloy. Two shims included in each set.
  • Available in 22.2mm to 25.4mm (silver finish), 25.4mm to 31.8mm and 26.0mm to 31.8mm (black finish).
  • Simply place one shim each side of clamp area on handlebar and insert into stem, tighten as normal.
  • Width of 25.4 to 31.8mm shims is 48mm, the 26.0 to 31.8 is 44mm and the 22.2mm to 25.4mm shim is 44mm.
  • Ideal when fitting a track or MTB or BMX bar into a larger stem, or a regular MTB bar into an oversize stem.
  • Used by buyers for many other applications; clip on bars, exercise bikes, motorcycles, ATV's etc. etc.

Note: Please see our FAQ for more on sizing of bars and stems. Note: other items shown for illustrative purposes only and not included.

Please see our ebay shop for CNC spacer kits and many other singlespeed and fixed wheel goodies for road and MTB's.

Please see our guide to fixed and singlespeed conversions here: ebay Fixed and Singlespeed FAQ.


We manufacture a range of UK made precision bike components including drilled disc hub mount and standard threaded cogs as well as chainrings and associated components. In addition we are now retailing a growing range of fixed wheel and singlespeed products from many other companies suitable for road and off-road bikes. Please see the 'About Me' page for more about dealing with VeloSolo.

Please visit our eBay shop for a large variety of components for your track, road or mountain bike.

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Buying from VeloSolo

We will always deal with our customers and fellow cyclists promptly and courteously. When making a purchase you will be kept informed throughout the transaction. Please check our feedback for our many repeat buyers. We have conducted business on ebay for over twenty years dispatching thousands of items to more than 50 countries all around the world.

Shipping: we ship internationally wherever you may be. All items are packed very carefully and dispatched the very same day wherever possible. Orders are sent First Class in the UK (1-2 days) and both Airmail to Europe (3-7 days) and the USA (7 -10 days).

Returns: if this item should fail to meet your expectations, please return it unused in the original packaging within 10 days and we will refund without question (shipping costs not included). Please return items by registered post. If you have any queries or problems with your order, however small, please let us know.


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