Sizing Up or Down Plus Handlebar Widths and Crankarm Lengths: MTB Fit with Jason at Retul

Singletracks Mountain Bike Podcast

Singletracks.com

Sports, Wilderness

4.7 • 574 Ratings

🗓️ 31 January 2023

⏱️ 56 minutes

🔗️ Recording | iTunes | RSS

🧾️ Download transcript

Summary

Jason Williams is the Senior Sports Scientist in the Human Performance division at Specialized and a bike fitter at Retul, a Specialized brand that’s focused on delivering technically advanced bike fitting and product matching technology. Retul works with top level athletes and uses collected data to help inform product design, notably the Specialized Body Geometry line.

In this episode we ask:

Is bike fitting today different than it was 10 or 20 years ago? Have bike fits always been so data-driven?
Has bike fit data traditionally been fed back into bike design?
How are current trends in mountain bike frame geometry like steeper seat tube angles and longer reach affecting bike fit?
Is there tension between a good bike fit, and the idea of a “normal-looking” bike setup?
How do ride dynamics play into bike fitting? Are you able to optimize a rider’s weight distribution on the mountain bike?
Is there an easy way to tell if you are running the proper bar width for your body?
What are the considerations for sizing up or down?
Are there riders who could benefit from shorter or longer crank lengths?
Are ergonomics a part of bike fitting, for example brake lever and shifter setup? Do customizable electronic controls help?
What are some of the interesting things Retul has learned fitting professional and amateur riders alike?

Check out retul.com get more info or book a fit.

--Keep up with the latest in mountain biking at Singletracks.com and on Instagram @singletracks

Transcript

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0:00.0	Something unexpected has arrived in Happy Meal.
0:03.0	Teenage Mutant Ninja Turtles and Hello Kitty and friends are teaming up for the Ultimate Collab.
0:08.0	Joining your little ones on a fun-fueled adventure.
0:11.0	Some fun, some food, it's all inside this Happy Meal.
0:16.0	Until the 2nd of February from 11am includes one pre-selected book or toy whilst it's last.
0:20.0	Idle money sits in your current account,
0:23.0	stuck repeating the same tired tune.
0:26.1	Never hitting play on its potential.
0:31.1	But thanks to Monzo's Savings Challenge,
0:33.4	busy monies in the studio,
0:35.1	laying down a little extra every day, so your balance sounds sweeter
0:39.4	week after week. Monzo, the bank that gets your money moving.
0:45.0	UK residents staged 18 plus, one entry per person, Monzo personal account required, challenge
0:48.8	and prize teas and Cs apply.
0:50.4	Hey everybody, welcome to the single tracks podcast. My name is Jeff, and today my guest is Jason Williams.
0:57.5	Jason is the senior sports scientist in the human performance division at specialized, and a fitter at Retool, which is a specialized brand that's focused on delivering technically advanced bike fitting and product matching technology. Retool works
1:13.2	with top-level athletes and uses collected data to help inform product design, notably the specialized
1:19.4	body geometry line. So thanks for joining us, Jason. Sure thing. You bet. So tell us, how did you get
1:26.9	interested in sports science and bike fitting specifically?
1:31.0	I would say that it's been a long, a long path in the bike industry, for sure.
1:36.5	I've held a lot of different positions within bike retail.
1:40.4	It was a mechanic for a lot of years, sold bikes, and eventually evolved into a bike fitting role many years ago now.
	...

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