How to install Challenge Handmade Tires
Hoop Stress and Why Tire Pressure Should Decrease with Increased Tire Size
Some Pros Are Winning With Short Cranks—Shorter Than What?
When considering crank length for a mountain bike, it is important to keep in mind the type of riding that the bike will encounter as well as the rider’s morphology. The considerations for technical riding are different than for riding on smoother surfaces, and the length of the rider’s legs are also critical to crank length.
Split 30 cranks combine the stiffness and reliability of a 30mm-diameter spindle with the versatility to fit on a wide variety of bottom bracket shells. One spindle half is integrated into the left crankarm and one into the right arm; a bolt connects them together in the center so that ramped crenellations on the end of each spindle half tightly engage each other and a spacer in between to obtain proper total length.
This was a really cool project. We recently built this custom titanium electric mountain bike for a local Boulder cyclist who is 6'4", but with extremely long legs. His legs were as long as the average 6'9" customer but his torso was similar to someone who is 6'2". This posed a very interesting design challenge, and on top of that, he needed a very upright riding position to keep his neck and back comfortable. Instead of building the bike with a super long head tube and a custom suspension fork with extra long steering tube, we used the new Fox 38 e-bike optimized 180mm travel fork to help get the front end high enough for the rider to be comfortable.
We recently built this custom titanium electric mountain bike for a long-time customer of ours in Hawaii. The rider is 6'8" and 275lbs and we built this mountain e-bike with 29 plus tires. The Tires are 29x3.0" which are a real game changer for a big and tall person. You get better traction and stability, and even more tire cushion, which is nice when you don't have rear suspension.
The Case for Short Cranks By Lennard Zinn It’s probably clear in my previous “Why Proportional-Length Cranks?” blog post that I generally see performance benefits for tall riders with long legs in using long cranks. And by long, I mean longer than the standard 170-175mm (or even 165-180mm) offerings from the big component brands. In fact, I have found that riders will generally climb best (and often feel best) on cranks that are in the range of 20-21.6% of their inner leg length.
Hey lennard - this stuff rocks! i am sure you will have success with it. i am also the race director for the UB515 series in brasil - we have three large events with a lot of good sponsorship. i will put the word around that you are still making stuff like my 190mm cranks !!!! those cranks have about a million race miles on them, with finishes as high as 3rd OA at ultraman canada, and 2nd OA at Ironman Revisited. i also won the ultraman world championship for my age group twice on them. i can see them from where i am sitting - my Cervelo R3SL is hanging from the ceiling in the front office : ) i loved being able to get you guys out on the water, i wished i had gotten out there too, but it was one of those weeks. next time! as for C19, Kona is of course so far off the beaten path no self-respecting virus would make it here. we have 5 cases, no-one has been hospitalized. i suspect that is the worst of it. stay safe and i'll talk to yhou soon, [/fusion_text][/fusion_builder_column][/fusion_builder_row][/fusion_builder_container]