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Jake M

Jake M

Bay Area CA

Jake M's Passions

Snow Skiing
Road Biking
Mountain Biking

Jake M's Bio

Cyclist, Rock Climber, Hiker, Techie, Woodworker, Designer, Coffee Drinker. Weekends spent around California, hiking sections of the Lost Coast, Mountain Biking in West Marin, or Climbing in Tahoe.

Jake M

Jake Mwrote a review of on January 28, 2015

5 5

Familiarity: I've used it several times

+1 to Adam's comment: This bike feels like the acceleration of the Ibis SL-R but with the suspension/ride quality of the SB5c

I spent 2 days on the Mach4 and covered 25 miles of trail from flowy sandy single track to technical rock ledges going up and down.

First thing you notice is the weight of the bike, or lack thereof. 22 lbs of rocket feels dainty under power and urges you to bunny hop any potential obstacle, climbing or descending, which the bike does willingly.

I'm coming off an Ibis Mojo SLR. Despite 2 inches less travel, I found the Mach 4 to be a fantastic climber and equally capable descending. Going up, the bike pedals beautifully with little to no bob whether smooth or mashing on the pedals for a quick incline or out of the saddle sprint. I didn't touch the pedal platform switch all weekend.

Going down, the Mach 4 squats on impact, stays calm and composed and inspires more confidence going down hill than it's 4" of travel would suggest. Only under hard impacts from 2 ft+ drops did I use all of the rear travel from which the bike quickly recovered.

If you're considering one, or just have questions, Adam at CC is the go-to guy and authority on the full fleet of Pivot's as well as any other ride you are likely to consider. 801-736-6396 ext 5630

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Jake M

Jake Mwrote a review of on January 28, 2015

5 5

Familiarity: I've used it several times

+1 to Adam's comment: This bike feels like the acceleration of the Ibis SL-R but with the suspension/ride quality of the SB5c

I spent 2 days on the Mach4 and covered 25 miles of trail from flowy sandy single track to technical rock ledges going up and down.

First thing you notice is the weight of the bike, or lack thereof. 22 lbs of rocket feels dainty under power and urges you to bunny hop any potential obstacle, climbing or descending, which the bike does willingly.

I'm coming off an Ibis Mojo SLR. Despite 2 inches less travel, I found the Mach 4 to be a fantastic climber and equally capable descending. Going up, the bike pedals beautifully with little to no bob whether smooth or mashing on the pedals for a quick incline or out of the saddle sprint. I didn't touch the pedal platform switch all weekend.

Going down, the Mach 4 squats on impact, stays calm and composed and inspires more confidence going down hill than it's 4" of travel would suggest. Only under hard impacts from 2 ft+ drops did I use all of the rear travel from which the bike quickly recovered.

If you're considering one, or just have questions, Adam at CC is the go-to guy and authority on the full fleet of Pivot's as well as any other ride you are likely to consider. 801-736-6396 ext 5630

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Jake M

Jake Mwrote a review of on January 4, 2015

5 5

Familiarity: I've used it once or twice and have initial impressions

I spent 3 days in Phoenix riding the Pivot Mach 429 and got to compare back to back with the Mach 4 and Mach 6. I rode a total of about 25 miles on the Mach 429 on a variety of terrain that included rolling single track, steep technical climbs and a handful of rutted and rocky descents with drops up to 2 feet. I'm 135 lbs, 5'7 and was riding a Medium.

Initial reaction is that this bike is long! A long TT made me wish I had 45mm-60mm stem to give me extra leverage for the 29er wheels and my weight back to keep traction over the rear wheel on sandy climbs. No need to size up on this bike: XC or AM with the swap of a stem.

On flowing single track, the Mach 429's stable pedaling meant I didn't feel my energy was wasted, even coming off a 22 lb Mach 4. I tried making use of the Fox shock's CTD settings but left the shock in either Trail mode for fireroad climbs and flat single track or full open for longer descents. The latest DW Link is just fantastic.

Coming into tight switchbacks going up or down, the Mach429 proved nimble and easy to direct on smooth or less-than-choice lines. Despite the long top tube, The Mach429 changes directions eagerly at low speeds without giving up high speed stability.

Going down, I bottomed out the shock on a couple of stairstep rocks but never felt like I had run out of suspension, merely that the bike was going to use it's balanced geometry and big wheels to get me through the rest of the obstacle. Relatively smooth and higher speed descents were a pleasure as the Mach 429 would squat slightly and leave plenty of travel left over for bigger hits.

For a one bike quiver, the Mach429 would be a very capable ride for anything from XC racing to all day rides with friends. Set up the cockpit considering the longer top tube and know that you have a bike ready for whatever trail you're pedaling down.

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Jake M

Jake Mwrote a review of on December 28, 2014

4 5

I put ~1000 miles on this setup with a Force on the rear before swapping out for something wider. It help up very well on nice tarmac and broken asphalt. It rolls fast, brakes well and looks pro. I ended up swapping out for a 25mm tire to gain a little confidence descending - the 22mm on the front was just a little too twitchy for my taste

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Jake M

Jake Mwrote a review of on December 28, 2014

2 5

Familiarity: I've put it through the wringer

2 stars only because they are rubber and round. Otherwise they don't qualify as CX tires. I'm 130 lbs, race mountain bikes and am a pretty delicate rider. Still, I've managed to flat on these more than any other tire I've used, on any other bike in the last 4 years, combined. I've had at least 6 pinch flats running these tires on non-race situations. On gravel roads with the occasional root. Hardly epic riding conditions. Too narrow to be great offroad, too delicate a carcass to keep the air in. The side knobs shred pretty quickly. These tires are best used as presents for racers you don't like. I wouldn't even run them on my commuter.

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Jake M

Jake Mwrote a review of on December 28, 2014

5 5

Familiarity: I've put it through the wringer

I've run this cassette on my CX bike for 1.5 seasons. It has worn fine and I'm never counting grams once I'm on the bike. Fun fact: this cassette uses the same intercog spacers as a Durace cassette. Which is super pro. It's a wear item, same the $$$ for post-ride coffees.

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Jake M

Jake Mwrote a review of on December 28, 2014

4 5

Familiarity: I've used it several times

I bought my Thompson 125 dropper post to replace a KS LEV seatpost that was spending months away at KS for a standard rebuild. Sick of waiting and longing for the ability to lower my seat, I shelled out for the Thompson. In two months, it's been great. No discernible play up or down or side to side. The seat remains tight and I have not had to adjust anything since the initial install. My only qualms so far is that the last 1 cm of travel is sometimes sticky when the seat returns. It is usually the first 4-5 times I use the post in a ride, and I have to manually pull the seat back up to full extension. I've heard of this happening with other Thompsons. Right now it a 4 star post. The first rebuild will determine if the rating goes up or down.

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