9point8 develop to their Slack-R angle regulate headset household with new press-in ZS and EC cups that may slacken your trip out between 1-2.8°. For those who’re driving a motorcycle that you simply want wasn’t fairly as steep to raised sort out harder trails, a 9point8 Slack-R Get Slack-R headset would possibly simply be the ticket to getting slacker…
9point8 Slack-R ZS & EC angle regulate headsets
Just a few years in the past, Canadian element maker 9point8 launched the primary angle-adjustable headset that labored on bikes with IS Built-in headset cups. That authentic thread-together affair labored by relocating your current IS bearings above & under your headtube, into new eccentric offset cups that sat within the outdated bearing races. Now, riders of bikes which have Zero Stack headsets – the place alloy cups are first pressed into your body, with their very own pressed-in bearings – can get the identical slacker Slack-R conversion, as nicely.
What do it’s essential know?
Fashionable tapered press-in headsets are available in basically 2 varieties – Zero Stack (ZS) the place you don’t actually see the cups and Exterior Cup (EC) the place you do. The 9point8 Slack-R headset resolution once more works by shifting the bearings of your headset, outdoors of the headtube and offset a number of millimeters from the centerline to successfully change your headtube angle.
Doing so leads to between a 0.8-2.8° slacker head angle. (Or the identical quantity steeper if you wish to go that path.) It’s depending on headtube size, so shorter headtubes will see extra dramatic modifications.
Swapping within the exterior cups means a taller mixed stack top of your headset. So, it’s necessary you may have a spacer or two you may pull out from beneath your stem. Lest your steerer tube be too quick. It’s going to additionally almost definitely increase your headtube by as much as 10mm, growing body Stack. And along with slackening your headtube, it should additionally enhance fork Path a bit.
Fairly a little bit of small geometry modifications will happen. However that’s why you need to give it a attempt, proper?
If you’d like extra of a geo change clarification, 9point8 provides a deeper take a look at their Slack-R system, right here.
Tech particulars
9point8 calls the Slack-R design “creak-free”, made with machined 6061 aluminum cups and sealed stainless cartridge bearings. Headset equipment weights vary from 57-104g relying in your desired ZS/EC combo.
The 9point8 Slack-R now is available in press-in choices to suit ZS headtubes. Higher bore diameter is out there as 44mm, and decrease bores of 49 or 56mm. With that, you may mix-and-match. Inner ZS44 or exterior EC44 up prime. Then ZS 56, EC49, or EC56 down under, to get the angle change you need, inside acceptable stack top enhance.
ZS cups have minimal added top and fewer angle offset; whereas EC brings larger modifications.
9point8 Slack-R ZS & EC – Choices, pricing & availability
There’s a “Filter Your Slack-R Equipment” instrument on the left aspect of ZS/EC Equipment web page. It’s going to present your choices based mostly on headtube size. Choose 44mm higher and 49mm or 56mm decrease, then it should present the ensuing angle change and headset stack top of all potential choices.
All Slack-R ZS/EC headset kits promote of $99USD together with higher & decrease cups with bearings, a crown race, star nut & prime cap, and 9point8 set up and alignment instruments. These new Slack-Rs, and the wide selection of $109 IS built-in Slack-R headsets can be found now. 9point8 contains free delivery in North America direct from 9point8.
