Rave Flyers

I attended UW-Madison in the early 90’s, when the Mid-West Rave scene was blowing up. Lots of fun and lots of dead brain cells. Here are some flyers I did for parties along the way.

Understanding SuperBoost (Plus) and Chainline with RaceFace Next SL (Cinch)

TL;DR: You can use your existing RaceFace Cinch 136mm spindle with your new Superboost Pivot Switchblade frame. You will only need a zero-offset Cinch chainring to get the correct 56mm chainline.

My new Pivot Switchblade uses SuperBoost Plus 157mm rear hub and frame spacing, which is a new hub spacing “standard” (at least to me). There aren’t many manufacturers using this new standard yet, but Pivot is all Gung-Ho on it. Benefits are stronger and stiffer wheels, yada-yada…But the most noticeable difference is that you will be in a world of hurt trying to figure out how to get the ideal ~56mm chainline with your RaceFace Cinch crankset.

I’m running the first generation RaceFace Next SL crankset (which have been bombproof for me), and I’ve been moving them from bike to bike over the years. The standard spindle length that comes installed for non-Boost/Boost is 136mm. All of the bikes I’ve used with this crankset had BB92 Pressfit bottom brackets, so I’ve also been moving that BB to every bike as well.

The Pivot Switchblade also uses a BB92 bottom bracket, but the stock XT/XTR build comes with an OEM-only RaceFace Aeffect R crankset, that has a longer 143mm spindle. This confused me, and I thought I needed to replace my 136mm spindle with a longer 143mm one. So I bought the 143mm spindle and swapped it for the 136mm one. Following the RaceFace bottom bracket installation guide, it says that the 143mm spindle requires 4.5mm of spacers on each side of the spindle when used with a BB92 bottom bracket.

For the chainring, I had previously bought a OneUp Switch Cinch (Boost) carrier and Shimano 12s oval chainring. Once installed back on the bike, I did my best to measure the chainline and got about 57.5mm from the center of the BB shell. 57.5mm is a little wider than the ideal 56mm, but decided to leave it and called it good.

Having ridden the bike for a couple months now, I was noticing some chain noise during hard climbing (i.e. in the lower gears) – the kind of noise that sounds like the chain is not perfectly matching up and is rubbing another gear.

Yesterday, I finally took some time to get a closer look at the chainline and try to find out if it could be improved. I had also ordered a OneUp Switch Cinch Superboost carrier to try out.

My first attempt was to take out the Boost carrier and replace it with the SuperBoost one. That actually resulted in a worse (wider) chainline, as the SuperBoost carrier has a zero offset, while Boost is 3mm(?).

I then tried replacing the chainrings with some older ones I had lying around over the years. I tried a Boost round ring and also a non-Boost oval ring. non-Boost actually has a 6mm (inward offset), so fitting that one improved the chainline in the lower gears. This chainring may have solved my rubbing issues, but it isn’t technically Shimano 12s MTB compatible.

After some Googling for “Superboost Chainline”, I came across this 4y old Reddit thread:

Super Boost was designed to maintain compatibility with current RF and Sram cranks, so you should be all good as long as your crankarms clear the chainstays by at least a couple mm.

After letting that sentence digest in my brain, I realized that I may have not needed the longer 143mm Cinch spindle after all. After a quick eyeball for the crank arm clearance, I dug the original 136mm spindle out of my parts bin and swapped it onto the crankset and installed it the same as any previous BB92 setup; no add’l spacers required. Crank arm clearance was plentiful (~1cm) with no tire or frame clearance issues either.

I also realized that the OneUp Switch carriers simply provide the required offset when used with standard spindle length cranksets. So, using the OneUp SuperBoost carrier and Switch ring, it provides a zero-offset ring and the ideal 56mm chainline when used in a Superboost frame.

So, now I have the correct 56mm chainline, but have yet to try it on a trail/climb to see if resolves the rubbing issues. When I look at the chainline in the lowest or highest gears, it still looks pretty extreme to me, so I am not too optimistic that it will resolve all of the noise just yet. But if it doesn’t, I may actually swap back in the Boost carrier to move the chainline inwards by 3mm; this would effectively provide better chainline for lower gears (which I use much more often than the higher ones), which should get rid of the noise for sure. It’s interesting to note that “ideal” chainline is really more for frame and tire clearance than for optimal shifting, so it’s “ok” to adjust your chainline to optimize your shifting as long as there aren’t any issues with your frame/tire clearance. And since there is more chain/slack in the higher gears, shifting in those should still work ok (but may have more noise).

Another benefit of going back to the standard spindle is that the Q-factor (distance between crank arms) is less wide, which is better for ergonomics and pedaling efficiency. (Sidenote: Since getting this bike, I have actually noticed some knee pain, but not sure if it’s from the wider Q-factor or not; I couldn’t find much information online to support this theory.)

But why did Pivot spec the wide 143mm spindle Aeffect crankset in the first place? Maybe it was an availability issue, but as I don’t have that crankset anymore to double-check, my assumption is that Pivot may have used a non-Boost chainring to push the chainline inwards by 6mm, in order to compensate for the wider spindle length. That should effectively provide the proper chainline when used with Superboost spacing. And thinking about that makes me wonder how the Pivot Mach 5.5 I sold (Boost spacing) is handling that crankset and ring offset?! Oops…

2019 Pivot Mach 5.5 Large (post in progress)

I recently came across a pretty good deal on ebay for this Pivot Mach 5.5 frame and snagged it. It was sort of a shoot first, figure it out later sort of impulse bid, but 2 days later it showed up on my doorstep!

The Mach 5.5 has also been on my shortlist, so it was hard to pass up. The thing that was different about this frame from all of my other bikes is that it is a Large sized frame, and I’ve only ridden Mediums in the past. So it was sort of a leap for me to try a size up for the first time ever.

Before I swapped over the parts from my Spectral, I tried to get an idea of what the longer bike would feel like (and look like):

Pivot Cycles™ Mach 5.5 Red Satin Touch Up Paint Pen

If you ride a Satin Red Pivot Mach 5.5, and have some battle scars, I have a limited quantity of factory touch up paint pens available for sale.

Perfect Match Custom Acrylic Enamel paint pen custom mixed by MyPerfectColor – Brand New and never used!

Retails for $39.77 at MyPerfectColor.com – Buy here and save!

Touch Up paint is not available through Pivot! MyPerfectColor is Pivot’s recommended source. Limited quantity batch mixed on Feb 9, 2021 (shelf life of 18 months).
Includes prep and application instructions.

Get yours while they are available!

Free shipping in USA by USPS First Class with Tracking. Ships within 1 business day.

Pivot Mach 5.5 Paint Pen - Red

Pivot Mach 5.5 Paint Pen – Red


Buy now

1993 GT Zasker LE (90’s Ridiculous Build)

This was my first “real” mountain bike.

TL;DR, I spent one summer back home after getting kicked out of college my freshman year for poor grades, so I got a job at a small bike shop and helped out as a sales/mechanic/whatever.

The shop sold GT, so I splurged and picked up this Zaskar LE frame, along with that omg-oh-so-sweet RockShox Mag 21 SL Ti fork with my employee discount.

Lots of purple-anno goodies in the build. Here’s what I can pick out from the photos:

  • GT Zaskar LE frame (16″)
  • RockShox Mag 21 SL Ti fork (63 or 80mm, can’t remember), with ODI clear stanchion booties
  • Selle Italia Flite saddle w/Ti rails and perforated leather(!)
  • Suntour XC-Pro MicroDrive crankset 175mm
  • Ringlé Moby seatpost
  • Ringlé water bottle cage
  • Mavic 217(?) rims with Wheelsmith DB spokes (I built these myself!)
  • Ringlé SuperBubba front hub, MachineTech rear (silent roller clutch!)
  • Continental XC tires (can’t remeber the model, but they were superlight and a bit skinny)
  • ControlTech stem
  • Syncros bar ends
  • Dia-Compe 987 brakeset
  • XTR rapid-fire shifters/levers

My project wishlist is to source all of these parts and rebuild this bike! I’ll probably end up spending 10x for these parts today. Stay tuned!

2018 Canyon Spectral CF 9.0 LTD

New bike time!

After barely a year with the Norco Range, I got a hit on one of my ebay searches for another bike on the wishlist. I’ve read great things about Canyon’s Spectral, but they’re very difficult to come by in the States as they are a German brand that didn’t have a U.S. sales outlet until late last year, when they launched their direct-to-consumer model in the U.S.A (similar to YT Industries).

A few emails back and forth with the seller, an offer was made, and the bike arrived a few days later!

The Spectral is actually the first, brand new complete bike that I’ve ever purchased! The only other bike I’ve bought new was actually just a frameset: my beloved ’93 GT Zaskar LE (post coming soon!).

This Spectral CF 9.0 LTD is their top-of-the-line trim for 2018, retailing for $7K(!). Even at that price it’s a relative bargain considering the spec sheet. I think a similar build from Trek or Specialized (or any dealer supported brand really) would probably top $10K!

It came oozing with FULL [Gooold!] Sram XX1 Eagle, Ultimate brakes, Enve m60 HV’s with Chris King boost hubs, and ultra-wide Maxxis DHF/Rekon 2.6 rubber. Not to mention Fox Factory suspension front and rear, a blingy Renthal cockpit, and a 150mm Reverb to complete the build.

Of course, I had to do what I do…and part all that shit out and swap in the XTR stuff from the Range. I’m a Shimano guy, what can I say?? Plus the parts on the Spectral were worth quite a bit, which I wanted to take advantage of and offset my costs as much as possible.

Here’s what I ended up with:

The only stock parts are the frame/fork/shock, Renthal cockpit, and headset! After much deliberation, I even swapped the enve m60/King wheelset for a set of the new enve m630’s (30mm internal) on DT 240s. They’re lighter (only 1420g!), wider (30 vs 24mm) than the HV’s they replaced, and also use my favorite DT 240s hubs! Don’t get me wrong, I love Chris King, but the 240s are way easier to maintain, are super smooth, and also come in my preferred centerlock rotor mounting interface! Who can knock on Shimano’s XTR Ice-Tech Freeza rotors! They’re the best and only come in centerlock!

So far, I only have a handful of rides on the Spectral, but man is it fun! It’s a little lighter than the Norco, but very flickable and super agile. It definitely climbs better, but I have missed the 160mm travel of the Range a few times here and there. But overall, I think the 150/140mm setup of the Spectral is very well-suited for most of the Bay Area trails I frequent the most. And thanks to the ShockWiz, I managed to achieve perfect 100 scores on both the Fox 34 and DPS rear shock.

The size Medium I have has a reach that’s the equivalent of a Large in the ’15 Norco Range. I am right on the edge of Canyon’s sizing chart between Medium and Large, and I think the Medium is perfect for me.

I also downsized the Maxxis 2.6 tires to my previous Schwalbe Magic Mary and Nobby Nic combo, which I like a lot. I’m not ready for 2.6 (yet)! I still have the tires, though, so maybe I’ll give them a whirl when the Schwalbe’s die.

Speaking of which, the Nobby Nic suffered a few pinch flats while on the Norco that have been bugging me. I scored some of the new Slime Premium Tubeless sealant at Sea Otter and had high hopes for the stuff, but have been totally let down by its performance. I haven’t been able to get the pinch flats or even tiny holes to seal up with the Slime, even after pushing in a few plugs on the larger holes. I’m really surprised. The rep at the booth had a nice demo and it looked very promising, with their long-lasting [tire] “lifetime” expectancy. I think the issue is that the Slime is kind of thick and doesn’t flow like Stan’s does, so it isn’t able to plug holes as quickly. On my last ride at Joaquin Miller, I was pumping my rear tire after each loop!

When I got home, rather than ditch a perfectly good tire, I decided to install a Cushcore tire insert into the rear (I had scavenged a set on a recent parts swap). Yes, it was as horrible as everyone says it is to install. But I got it in there! And while I was at it, I mixed in some Stan’s sealant with the Slime, and it plugged up my pinch flats instantly! Sorry Slime, I tried, but you failed me. I’m going back to Stan’s.

Current build: 27.42lbs incl. rear Cushcore insert and pedals…so probably 26.5 without? Not bad.

Anyway, that’s all for now. I’ll update later with some more ride reports…

2019 Updates:

In my quest to push this bike a little bit further, I swapped in the 2019 Fox X2 rear shock with the 65mm stroke (vs 60mm stock length). That increased the rear travel to about 152mm (best guess). The front got a similar upgrade with a 2019 Fox 36 Performance with 160mm travel and the GRIP2 damper.

Canyon also seems to think this bike can go bigger, as their 2019 Spectral LTD is now spec’d with 65mm stroke rears (for advertised 150mm rear travel) and 160mm front travel using a Fox 36 Factory fork.

I was also happy to discover that it is possible to mount a chain guide to the Spectral using an e-type guide. Canyon provides a special adapter to mount an e-type front derailleur to the rear chainstay:

My bike didn’t come with it, so I contacted Canyon and they sent me one. I installed a FUNN e-type guide, which says it’s not compatible with Oval rings, but it fits perfectly with my AbsBlk oval ring and works great:

Here she is in all her upgraded glory!

And for anyone trying to figure out how to mount ShockWiz to the X2, here’s how to do it:

Read more about this solution over at FeelTheBerm.com and rent your ShockWiz, too!


The Best Bicycle Bell for 1x MTB Drivetrain and Remote Dropper Post Lever Setups

With the movement to 1x drivetrain setups with left-hand dropper post remote levers, I’ve found it difficult to find a bell that mounted to my cockpit in a way that was easy to access and ring, without taking my hands off the grips or having to unwrap my thumb, etc.

Previously, I had used a Mirrycle Incredibell Brass Duet Bell (~$10 from Amazon; Warning: if you buy this bell, be sure to buy from a REAL bicycle shop such as “Trail This”, as many of the ones listed are fakes made in China ~$2, while the genuine product is made in Japan). The bell also has a very loud and long ring tone, which rings both on the initial push and also on the return of the lever, so 2 pings per push (“Ding-ding”!).

I mounted the Duet bell upside-down on the left-side, situated where my index finger would normally hit the release trigger for the front derailleur shifter. When used in conjunction with my RockShox Reverb plunger-style remote (right-hand remote, mounted upside down on the left-side and actuated by my thumb), this setup worked great and was very ergonomic.

But when RockShox came out with their new 1x remote lever, I upgraded to that style remote and actuating it collided with the bell!

After a bit of searching, I finally found an underbar-mounted bell that works great for today’s 1x setups and underbar dropper remote levers.

And here it is. Ta da! Trigger Bell!

The bell is designed to be flicked by your thumb, allowing your hands to be fully wrapped around your grips at all times. There are several mounting positions, but for a 1x setup, this is how to do it. The Trigger Bell mounts beneath the brake lever and in front of the dropper remote lever. It doesn’t interfere with any brake or remote lever actuation, nor does it interfere with my fingers or grip.

And get this: You can even ding the bell while braking!

Note: Usually, it mounts to the outer 1/4″ of the grips, but my grips were cut short by that much for my previous bell setup, so I used a piece of rubber to mount the Trigger Bell where it was supposed to go.

While not as loud as the Duet bell it replaced, it is still plenty loud for trail riding and alerting hikers, etc. And I really like the ergonomics and using my thumb to ding it. If you have a 1x setup and are struggling to find a bell that works with your underbar dropper remote lever, try the Trigger Bell! Best part? It’s only $12.99 at Amazon!

Shockwiz Rentals Now Available!

TL;DR Check out my sister website at FeelTheBerm.com for more details, pricing, and to reserve a set! Rent a ShockWiz today! Renting Nationwide!

ShockWiz is one of the most innovative products to come to the MTB market and the information it provides about your setup is invaluable. Take out the guesswork and remove the technical barrier behind suspension setup. Stop tinkering with your suspension and push your ride to the limits instead. Sign up now to reserve your rental!

What is it?

ShockWiz is a suspension tuning system for air-sprung mountain bikes that combines high-tech hardware with an intuitive smartphone app. Lightweight, durable and powered by a long-lasting coin cell battery, ShockWiz automatically records and evaluates suspension performance every time you ride. The ShockWiz app displays straightforward adjustments that unite bike, terrain and riding style.

ShockWiz works for all mountain bike riders, regardless of their experience or bike’s intended use. It works on hardtail and dual suspension bikes, and for all levels of skill, speed and terrain.

With ShockWiz, you know exactly how your suspension is performing – and how to make it better.

Features & Benefits

  • Automated tuning recommendations.
  • Shock tuning score — a snapshot of how well your suspension is set up for you.
  • Works on hardtail and dual suspension bikes. Works for Cross-Country, Trail, All Mountain and Downhill.
  • Inexpensive, replaceable CR2032 battery lasts for months.
  • Waterproof and dust proof — IP67 rating.
  • Two alternative hoses (included) offer a range of fitting options.
  • Smartphone app is compatible with Apple and Android phones.

Essential Details

  • ShockWiz is designed for all mountain bike riders, regardless of your experience or bike’s intended use.
  • You can tune for every riding style: Efficient (pedaling), Balanced, Playful or Aggressive.
  • Advice for air pressure, spring rate, compression and rebound is displayed in the intuitive smartphone app.
  • In the box: ShockWiz hardware, front and rear-specific hoses, rubber mounting boots and zip ties.

SOUNDS AWESOME! How much do they cost?

SRAM has priced the Shockwiz at only $399 USD EACH!

Uh, I think I’d rather rent them!

Good thinking! Check out my sister website at FeelTheBerm.com for more details, pricing, and to reserve a set! Rent a ShockWiz today!

2015 Norco Range C7.2 Carbon

Just picked up this bad boy.

I’ve had my eyes on Norco’s Range and Sight models for a few years now, but they are pretty hard to find locally. eBay is also very sporadic and usually they are located in Canada, so shipping stateside is an issue. But I finally found one and the price was right so I took a chance on it.

The NorCal rain has been terrible for riding this year; it’s literally been raining every weekend (I’m talking torrential downpours!) and the trails are just a muddy mess. In fact, I’ve only gotten in 3-half rides since last December! And each time I had to turn around because my tires were so muddy or trails were closed off.

Unfortunately it had some issues: The Pike was super low on air pressure (~10psi), but was very difficult to compress. Pumped up to my normal 50psi, it was basically locked out! Then there was the Reverb. The remote button was completely loose, with no signs of resistance/actuation,  and the post was stuck ‘up’.

Luckily, a teardown of the Pike and a lowers service with new oil fixed the pressure problem. I think the previous owner botched a service attempt and managed to create some sort of imbalance in the upper and lower air chambers, when they should have self-balanced themselves. In any case, the Pike is working perfectly again.

As for the Reverb, I took a chance on a bleed kit and it turns out that the previous owner botched a bleed attempt, leaving very little fluid in the line as well as a lot of air. In fact, the bleed screw on the remote was inserted upside down with the pointy end sticking out! After bleeding the line, the Reverb is back in action.

This is my first frame with internal routing throughout, so swapping parts from the Carbine was a little painful. Luckily I’d seen some YouTube videos of how others route cables and used the existing cables to pull a length of string through the cable ports. I’m pretty sure that without existing cables to work with, routing the cables would make me cry.

Another issue was that I had to get a new rear brake line because my existing one was a couple inches short for my liking. That meant a full bleed as well. On my first attempt the lever was waaay too stiff. Turns out I hadn’t pushed the pistons into the caliper body far/hard enough.

And while the stock Pike RC had the same overall functionality of my Pike RCT3, I liked the overall condition of my RCT3’s, so I swapped the charger dampers and travel shafts between the two forks.

The Range is now ready to rumble at a relatively light (for an Enduro bike) 26.95lbs (without pedals). Since this posting, I’ve swapped the Monarch Plus with a CCDB Inline shock and put a Magic Mary 2.35 Evo up front, moving the Nic 2.35 to the rear. As you can see, I’ve also been tuning the bike with the help of the ShockWiz both front and rear. These things are game changers. If you’re interested in renting some for your bike, check out my ShockWiz rental post!

Englund Total Air Cartridge Replacement Seals Kit For RockShox Judy XC, SL, FSX, SID, White Brothers

Brand new, never-used replacement Seals Kit for Vintage Englund Total Air cartridges!

2021 Update: Kits for both cartridge types are AVAILABLE!

Fits vintage Rock Shox Judy XC, SL, SID and White Brothers (Bros.) forks that
used the Englund Total Air cartridge kit.

**One Kit will replace seals in two cartridges (enough for one fork)**
** Buy with confidence! This is a Brand New seal kit, not 20+ years old!  ** I have the Original, MASTER Spec List for the seals used in these cartridges!

Not sure which one you need? Just remove the existing cartridge from your forks to check: 

Choose the Nylon Body Kit If your UPPER cartridge body color is BLACK plastic

Choose the Alloy Body Kit If your UPPER cartridge body color is SILVER alloy


They are easy to install and come with all the seals necessary to get your cartridges working and holding air again. The kits include illustrated instructions and some Buzz’s Slick Honey as shown. One Kit will replace seals in two cartridges (enough for one fork)

FREE SHIPPING IN USA! $14 USD for International shipping worldwide (Sorry, USPS raised the International postage rates). I mail by standard USPS First Class Int’l Package service, so please allow 2-3 weeks for International deliveries.

*Int’l buyers: I can ship up to 2 packs in one parcel for the same shipping fee of $14. If you need more than 2, please send me a message by leaving me a comment at the bottom of this page so I can give you an invoice for payment. Your comment will be private.

Englund Total Air Cartridge Seal Kits (Complete Kit with Slick Honey lube) – Select Version during Checkout

Free Shipping in USA. +$14 USD for International buyers.


Buy now

NEW OFFERING! I am now providing a version of this kit packaged without the Slick Honey lube. This allows me to mail the seals in a standard envelope. Shipping is Free in the USA and only $1.25 Internationally! No tracking is available with this seal-only kit and it may take a couple weeks for delivery by your local postal service.

Englund Total Air Seal Kit Only (seals and instructions only! no Slick Honey lube included!) – $14.99 USD – Free Shipping in USA. $1.25 for International buyers.

  Black plastic (Nylon) seal kit
  Silver (Alloy) seal kit