Sequence Fab Stem, “The Hook”
February 12th, 2008 | by Phil | Published in FEATURED PROJECTS, PROJECTS | 13 Comments
this was a very interesting project both from the perspective of machinist and from the perspective of bmx rider. when aaron called to discuss the possibility of producing this stem i was skeptical from a riders standpoint, and intrigued from the machinist angle. of the techniques for producing this we considered making the three pieces separately but settled on making the main body out of one piece of solid 6061 and cutting it apart as the last operation. we really felt like this method would allow us to hold the tolerances between handlebar and steer tube to a consistent minimum. which is very important to the function of the stem as a clamping device.
it’s always refreshing to see a challenging project come to light and even more refreshing to see new ideas challenge the standards.
this is a great design that i’ve been happy to be a part of developing. you can see more at the sequence fab website.
these are in mid-process shown before and after of the handlebar slot.
this is the stem receiving the final slot ready to be split into the 2 halves.
this is the final step, cutting the stem apart into the two halves. from here they get ran through a tumbler to deburr the edges and clean up any scratches they might have.
here is the final product 2 “hooks”, 2 bolts and the spacer. this is a photo of the 50mm version with pocketing in the center piece.
February 13th, 2008at 9:23 pm(#)
oh my lord that is kinda neat
February 13th, 2008at 11:32 pm(#)
this is definatly an interesting stem i cant wait to see one on a bike.
February 14th, 2008at 12:48 am(#)
NEAT. I would like to see the maker’s initials, the name of the product, or logo etched on the middle wedge. Once this stem goes into production, where can I buy it?
-theMeat
February 14th, 2008at 8:18 am(#)
have a look at sequencefab.com to see finished version. although i don’t see a pic of one on a bike? i like them! actually they are in production and you can purchase them over at flatlandfuel.com
February 14th, 2008at 9:32 pm(#)
myself and several riders have this stem and simply is amazing. I’ve heard nothing but positive remarks on this stem. nice job from aron and phil. j
February 14th, 2008at 9:48 pm(#)
wow. I never even thought about those steps. haha
it works great. tight as it gets, and lighter than anything else.
February 14th, 2008at 11:11 pm(#)
do you think the 50mm version will be capabel to handle street riding’s abuse?
February 15th, 2008at 8:23 am(#)
i believe the 50mm is being ridden by a few folks, and i have yet to hear any negative comments.
February 15th, 2008at 1:56 pm(#)
Hey Phil, ive contacted Aarron about getting a silver one but he said he cant do it, Any chance of getting a 35mm Polished one directly from you? I gave my email address.. ill check back here later & in a few days. But if you could let me know..
Cheers
Jon
February 19th, 2008at 2:54 pm(#)
jon,
you’ll need to work that out with aaron. we don’t keep any sort of stock and the sale would have to go through him anyway. maybe enough suggestions would lead him to getting a few “raw” versions next time around.
thanks –phil
May 11th, 2008at 9:12 pm(#)
hay love the desine
im just about to percis won my self.
i was just wonering if its essy to strip out the blots.
May 15th, 2008at 11:29 am(#)
i don’t think it’s easy to strip out the bolts? i suppose if you had your heart set on stripping them out you could.
for what it’s worth most of the stems that we make we use what’s called a “form tap” on the threads. which helps create a stronger thread profile than regular cut threads. at least that is what they tell me…
May 16th, 2008at 6:45 pm(#)
I just got the “hook” in yesterday and it is sick. I love it!!
great work. you guys are freaking brilliant!!!!!!!!!!!