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Smooth and sandblasted budget friendly bar holder

HiFi BSX

HiFi BSX Mountain Bike Stem Black MTB Stem
HiFi BSX Mountain Bike Stem Black MTB Stem
HiFi BSX Mountain Bike Stem Black MTB Stem
HiFi BSX Mountain Bike Stem Black MTB Stem
HiFi BSX Mountain Bike Stem Black MTB Stem
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HiFi BSX Mountain Bike Stem Black MTB Stem
HiFi BSX Mountain Bike Stem Black MTB Stem
HiFi BSX Mountain Bike Stem Black MTB Stem
HiFi BSX Mountain Bike Stem Black MTB Stem
HiFi BSX Mountain Bike Stem Black MTB Stem
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₩102,000 Sale Save
DIAMETER 31.8
LENGTH 31mm

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You've already met the HiFi and the HiFi 35, now meet the HiFi BSX. All the same features as the HiFi, with a matte, sandblasted finish.

  • Cold forged in Taiwan
  • Equally robust as our CNC'd stems
  • Rounder edges and smoother contours

Our more budget friendly stem, forged with a matte sandblast finish

☛ 5mm hardware all round
☛ 31.8 and 35mm clamp options
☛ 31, 35, 40 and 50mm lengths

☛ Stem and hardware

☛ Cold forged from premium 6061 aluminium
☛ Bead blasted and anodised

Specs

Process // 3D Forging

Material // Premium 6061 Alloy

Length // 31.8mm (31mm / 40mm) // 35mm (35mm / 50mm)

Rise // 0°

Clamp Size // 31.8mm / 35mm

Stack Height // 38mm

Steerer // 1 1/8"

Weight // 200g (35/50)

Click here to view the saddle user guide.
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Questions?

Don't hesitate to reach out with any and all questions!

Contact Us

Worldwide shipping

We ship anywhere in the world with competitive rates from UPS and FedEx. Alternatively you can pickup right here at Chromag HQ.

Service Guide

Need more info on setup, service and spare parts?

Check out our user guides here.

Warranty

All of our parts are backed by a 1 year warranty.
After that we still have your back with our crash replacement program.

Stem FAQ's

There are really only two bar diameter standards these days, 31.8mm and 35mm.

Make sure you find out which one your current bars are!

Almost all forks nowadays have a 1 1/8" steerer tube at the point where the stem attaches.

There are a few forks still around with a 1.5" steerer but it's quite unlikely you need to worry about this.

You can always measure your current stem/steerer if you want to be extra sure. (1 1/8" is about 28.5mm)

This is very tough for us to answer but somewhere in the vicinity of your fork offset is generally a good place to start.

Remember, a longer stem doesn't really make up for a bike that is too short for you (and vice versa). It affects other things as well, namely handling.

We refer to this as "stack", and it's 38mm on all of our stems. (Apart from the direct mount of course.)

As much as possible! Your steerer should only be about 3mm shy of the top of the stem. (Just enough for the lip of the top cap to clear)

Pro tip: the steerer goes entirely through the stem and sticks out the top by about 3mm. Then use a headset spacer on top. This is how we build our bikes here at Chromag HQ.

You can read the full user guide here, but making sure everything is clean is a great start.

Follow torque specs, and make sure the faceplate has an equal gap top and bottom.

Handlebar markings only get you so far, if you want to be super accurate, get out the tape measure!

If something is creaking it's almost always due to dirt and dust. Take everything apart and clean. This would also be a good time to inspect for damage.

If you have a crash and tweak your bar angle, for the love of god loosen your stem when setting them straight. It also goes without saying to give your bike a good look over after a crash, especially the front end.

It's never a bad idea to replace your stem bolts each year (you'd be surprised how corrosive sweat is). We sell replacement bolt kits at a very reasonable price.

Customer Reviews

Based on 6 reviews
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T
Tony V.
Great stem!!

Always a joy to ride Chromag!!

y
ymh6106

Best stem

Q
Quillan D.
Beauty

Love the sizes offered and loving the colour and how it looks

C
C.
Simple, gets the job done

Looks sleek and fits the bike well. I love to have 5mm hex bolts instead of smaller ones which will round over time.

B
Blaine F.

HiFi BSX

M
Mikolas T.
Tha best

Perfect design