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£33.29 GBP

  • Description
  • Features
  • Set-up Tips
  • Shipping & VAT

Ultralight Mt Zoom alu stems - for both road/CX/Gravel & XC mountain biking.

2 angles: +/- 6 & 17 degree (reversible)

Sizes:  40mm, 50mm, 60mm, 70mm 80mm 90mm 100mm, 110mm, 120mm.

Stems are supplied with stainless steel (silver) bolts as standard.  There is also an option to add black bolts.

Note: Lengths are measured along the top of the stem from the centre of the steerer to the centre of the bar and not the distance forward from the steerer.

For bar diameter: 31.8mm & standard fork steerer 1 1/8 inch.

Lightweight: from 73g to 105g.

Stack height 40mm.

EN & ISO tested and on the race circuit. 100kg weight limit.

Specifications / Features

3D forged from strong aluminium 7050 - super strong and stiff.

Matt finish with stealth black logos 

Supplied with carbon paste & strong M4 stainless steel bolts which have loctite (ISO 4762), uses a standard 3mm allen/hex key.  There is also an option to add black bolts instead of stainless steel (these are exceptionally strong, but not stainless).

6 deg. weights: 40mm (73g), 50mm (74g), 60mm (78g), (70mm (81g), 80mm (85g), 90mm (88g), 100mm (95g) 110mm (99g) 120mm (105g)

17 deg. weights 60mm (78g), 70mm (79g), 80mm (88g), 90mm (91g), 100mm (98g) 110mm (101g)

Set-up / Tips

Use the carbon paste supplied with the stem, smear on steerer and bar to give greater grip.

Max torque recommendation 4Nm

Check tightness of bolts periodically, particularly after long bumpy rides.  Feel free to apply blue/medium threadlock to the bolts.

Shipping & VAT


Items are posted from the UK.

Standard UK DELIVERY in is FREE.

International postage cost is quite low as our products are light, and can be seen at the checkout.

Some international destinations may have an additional tracking charge.

Feel free to get in contact regarding shipping / customs requests.


The price shown for customers outside the UK does not include the 20% UK sales tax - bonus!


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