's Forum Archives - General

Archive Home >> General(1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 )

Cutting Carbon Steerer(3 posts)

Cutting Carbon Steereridk
Jan 26, 2003 2:45 PM
I have seen posted before recommendations to use a composite hacksaw blade to cut carbon steerers. Is this
a 12 inch fine blade (32 tooth), or is it a different blade alltogether?
32 tooth works fine...C-40
Jan 26, 2003 3:50 PM
A standard 24 or 32 tooth hacksaw blade that is new will work fine. Just don't use an old one that's dull.

The "composite" blades that you mention are actually round carbide grit blades intended to cut hard materials like ceramic tile. They will work too, but they are not necessary.

The smart way to cut the tube is to first assemble the bike with the headset, spacers and stem that you intend to use. Use a sharp tool to scribe a line at the top of the stem. Remove the fork and cut just below the line to place the top of the steering tube 2-3mm below the top of the stem. I wrap a piece of masking tape around the steerer to make it easy to see the cut line. I also cut around the steerer, rotating it about 90 degrees at a time, rather than cutting through it from top to bottom. Makes for a straighter cut. After the steerer in cut to length, use a fine file or sandpaper of round off the sharp edge.

An alternative is to cut the steerer slightly longer than the top of the stem and place a 2-3mm spacer on top.
I like this tool from ParkTig
Jan 26, 2003 7:35 PM
You described everything perfectly. Make sure the fork is firmly pressed all the way into the head set. Double-checking everything before cutting is worth the time.

It can be done without this Park saw guide, but it sure helps to prevent an off-angled cut. The LBS that I bought my frame from let me come in and use theirs.