Training & Fitness, Uncategorized

The Plasma Gets a Prescriber


It is a head-scratcher why this bike has not been a better seller. A part of the problem was the spec, back in 2014 when Kienle won Kona. There was no electronic shift system for this bike. That has since changed. Here is a Di2 Plasma Premium on Nytro’s site for a tick under $7000 complete.

Scott’s well-regarded Plasma has been a visible presence in triathlon since its introduction. Hard-riding, Kona-winning Sebastian Kienle as well as Luke McKenzie, Flora Duffy and others ride Scott’s fine bikes.

But there has been another issue with this bike, which is the lack of a prescriber or solver. Trek, Felt, Quintana Roo, Cervelo, TriRig, Giant, you name it, most of the important brands have Pad X/Y solvers and by this I mean if you know the X and Y dimensions from the bottom bracket to the pads (either to the rear or center of the pad) there is a “prescription” given you by the brand. You’re a Trek Speed Concept, size L, low/far stem, 35mm pedestal, pads pulled back 20mm from neutral.

This has allowed Trek to sell its Speed Concept well in spite of a truly inept national dealer network (that is to say, a truly great dealer network that is truly inept at sizing and selling tri bikes). How useful is Trek’s solver? As of this writing there are about 8,500 posts on the Trek Speed Concept Owners thread which consists of, mostly, “Hey, Carl, I’m 625×495,” and Trek engineer Carl Matson answers with a prescription like that listed above. The customer goes to a Trek dealer, says, “I’ll take a Speed Concept, Project One,” gives the prescription and hands over the credit card, and the Trek store employee, having no flipping idea what the consumer just recited, charges the card and a month later another SC arrives. The dealer accepts a UPS shipment, takes the bike out of the box (probably with a blurry knowledge of how the transaction occurred) and the new SC owner rides off into the sunset.

Scott didn’t have such a prescribing tool. Now it does. Scott uses the rectangle (or parallellogram) motif, which I think is wise. It’s easy to see all sizes on one chart, and it’s easy to read. If your Pad X/Y (this chart uses pad-center, not pad-rear) is sitting on the bottom of a rectangle that means the bike in that size fitted to you will be slammed (you won’t be able to go any lower). If the pads sit 20mm above the bottom of the rectangle you pedestal the pads 20mm.


Now, to be clear, you don’t have every bit of adjustability in these rectangles. You have 3 fore/aft options inside these rectangles: dead center, forward 15mm, and rearward 15mm, because fore/aft is actuated by moving the pad cradles forward or rearward (or center) and each cradle has holesets 15mm apart from each other.

Scott was wise to place this sizer on a page that can be printed out on a letter-sized piece of paper. Quintana Roo did the same thing. Now a fitter or retailer can print it out, laminate it, sit it next to the fit station and prescribe the bike after the fit is done just by reading off this laminated sheet. Click here to download a printable version.

What about mortal Plasmas, such as the Plasma 10 and 20, which are loosely based on the Premium but use standard stems and which might sell for down to $2,200? We use a different process to prescribe a precise complete bike solution based on a rider’s fit coordinates. For these bikes, just as with other mortal bikes like Cervelo’s P2 and P3, the process is just as granular, just as effective, but does not reply on the Pad X/Y solver.

By Dan Empfield   |   SLOWTWITCH.COM

Training & Fitness

The Off Season

Off Season Training

You just finished your last race of the season and the only thing on your mind is a well deserved week off doing what you have been dreaming of: NOTHING.Watching Netflix, catching up with your sleep, eating ice cream and cookies, finally fixing the house door that’s been broken since March.

Every endurance athlete needs a physical and mental break at least once every season. It is absolutely essential for your body and mind!

As soon as you are done with your break, it becomes time for the famous “off-season”. However, many athletes can often misunderstand what it means to be in the off-season. It can be interpreted as a time of checking out, skipping workouts, and basically in a vacation mode. Off-Season is actually a time when all of the foundation work is done… a great endurance athlete is made during the off-season months.

Follow these “Off-Season” guidelines to make sure you will have a killer season:

  • Work on your weaknesses!
  • Drills, drills, and more drills… (swim, bike, and run)
  • Make Core Strength Training a Priority! Now is the time to build an injury proof body (2 to 3 Times a Week)
  • Cross Training: Try new things to keep your workouts fun and to help your training: hike, paddleboard, surf, ski mountaineering, mountain bike, cyclocross.
  • Focus on Stretching: Include at least 5-10 minutes of Dynamic Stretching before every workout. Try yoga once a week if you can!
  • Hills: Build strength and power… try to incorporate more hills during bike rides and runs.
  • Take your workouts Off-Road: Try to run on a trail at least once a week (preferred on your longer run). Trail running improves your balance and proprioception and works a different variation of your muscles.
  • Stick with your Training Plan: A proper off-season plan will make you a much stronger athlete for the upcoming season.

Felipe Loureiro has been successful in triathlon at all levels – from amateur to pro – accumulating over 30 years of experience in the sport and coaching. His athletic success came as he coached others and grew a business. He knows what it takes for you to succeed in any multisport discipline despite your busy schedule.

Featured Bikes

Cervelo P5X


The all-new New Cervélo P5x. The fastest, most technologically advanced triathlon bike ever made. Designed and shaped for the needs of every athlete.

There’s more to the ultimate triathlon bike than blowing benchmarks away. For the first time in Cervélo’s history — for the first time in history, period — the unique needs of every triathlete, whether training, racing or travelling, are truly front and centre. From aerodynamically integrated storage and stress-free packing to unprecedented micro- and macro-adjustability, the P5X focuses on a singular goal: Helping triathletes achieve their personal best.

Cervelo P5X SRAM eTap

The Speed = Comfort + Power + Aerodynamics : When a athlete purchased a tri bike, they are buying speed. Roughly 80 per cent of a rider’s energy output is used to overcome resistive force, primarily aerodynamic drag A Tri bike allows an athlete to obtain a position depends on one factor above all else: Comfort.

Cervelo P5x

Build Range of adjustment: The micro and macro adjustability of the P5X allows every athlete to find their perfect position quickly and easily.

Cervelo P5x Disc

Disc brakes for consistent braking power in all conditions and new aero design freedom.

Cervelo P5x Triathlon

Build Removable Speedcase on downtube for extra storage and internal bottle orientation.

Cervelo P5x

Stealth intergrated frame/ aero box to carry tools and flat kit. Full housing cable routing for ease of assembly.Ultra-low standover frame and Smartpak storage for the ultimate aerodynamics. Saddle fore-aft adjustment from 74 to 78 degrees effective seat angle.

New Cervélo P5x

New Cervélo P5x

  • New Cervélo P5x : Ultra Aero Triathlon Bike
  • Full SRAM RED eTap Groupset
  • Cervélo P5x Carbon Road Bar / Stem
  • ENVE SES Cervélo Carbon Clincher Wheelset
  • New Aero Design Disc Brakes

Available at Nytro Multisport

Featured Bikes

2017 Quintana Roo PRthree

2017 Quintana Roo PRthree

The PRthree is a new elite level bike, sharing some technology advanced by its series cousins, the PRsix and the PRfive – lightweight, aero-efficient, stable, and mechanically easy to work on and travel with.

New Elite Level Tri Bike

Opening up a new Elite level category, the PRthree features trickle down technology from the award winning PRsix and PRfive. Shift, Boat Tail Airfoil, Static Downtube Orientation and the aerodynamic QBox storage system are technologies developed by QR specifically for athletes with the goal to acheive their personal record (PR). QR has even gone as far as reducing the bike build up tools down to 2 allen wrench sizes to ease travel headaches. We keep it simple so you can focus on getting your PR.

SHIFT Asymmetric Aerodynamic Technology

QR’s unique “shift” aero design was first introduced in the CD0.1 and further refined in our PR series. Shift offsets the Static Aero Downtube towards the drive side of the bike thus redirecting the concentrated airflow away from the ‘dirty’ (driveside) to the ‘clean’ side (nondrive side) of the bike. This minimizes drag and makes the drivetrain virtually invisible to the wind. The result is a bike that is more stable and more aerodynamic across a wider range of yaw angles. Athletes find that Shift helps stabilize the bike in cross winds which saves them energy on the bike to use on the run.

QR PRthree

Boat Tail Airfoil

Used in ballistics technology and the automobile industry, Boat Tail airfoils are more stable and more aerodynamic than Kamm Tail airfoils while still maintaining effectiveness over a wider range of yaw angles than traditional airfoil shapes. The boat tail shape reduces swirling air pockets off the back of each aero tube thus reducing drag and stabilizing the bike.

Quintana Roo Pr3

Static Downtube Orientation

Wind tunnel testing has shown that dropping the downtube as close as possible to the trailing edge of the front wheel improves aerodynamics. With this in mind, we’ve specifically calculated the downtube drop ratio for each size of the PRsix to make sure that every frame falls within the tightest standard. In other words, every size of the PRsix is as aero as we could possibly make it.


Aerodynamic Storage System

QR’s size specific QBox storage system is designed to further enhance the Boat Tail Airfoil increasing aerodynamics and stability while providing a quick and convenient location for storage.

QR QBox storage system

  • $2,500 for Shimano 105 Premium Component Mix
  • $3,600 for Shimano 105 Premium Component Mix with Race Wheel Upgrade
  • Trickle down technology from the award winning PRsix and PRfive
  • Shift Asymmetric Aerodynamic Technology
  • Frame featuring 24T hybrid composite technology
  • QBox increases aerodynamics
  • Boat tail cross sections increase aero efficiency and provide greater stability (used on the frame & QBox)
  • Static Downtube Orientation for maximum aerodynamic advantage across all sizes (size specific design)
  • Easy Assembly: 2 allen wrench sizes
  • Cockpit Adjustment

Available at Nytro Multisport

Events, Gear, Training & Fitness

Ladies Night at Nytro July 14, 6-8pm


// Leslie Myers to discuss healthy eating habits and nutritional foods for the active woman.
// Michellie Jones to share tips on training and racing that made her a World and Olympic champion.
// Kristin Mayer to show off her Betty Design “bad ass” triathlon and cycling apparel.
// Talia Herman from Garmin to demonstrate how products with HRM can enhance your fitness level.
// Sara Cates from Rehab United to discuss injury prevention and “listening to your body”.
// Beth Gerdes will demonstrate how to change a flat tire and what you need in your gear bag.


// Good eats compliments of Leslie Myers and
// Raffle for cool prizes
// Special one-night only offers from Garmin, Betty Design Giro, Cervelo, and more



Meet the Legends at Nytro

From Mission Bay to Kona
San Diego’s IRONMAN® Champs 
Then & Now

Join us for a unique evening to meet the triathlon legends: Scott Tinley, Michellie Jones, Heather Fuhr, Julie Moss, Kathleen McCartney, John Howard, Jeff Tinley, Linda Sweeney and Tom Warren with special video clips from Scott Molina, Mark Allen and Dave Scott.

Challenged Athletes Foundation Fundraiser:
$35 fee all proceeds benefitting CAF!

• Limited to 100 attendees
• Pictures with the legends
• Raffle for cool prizes
• Co-Moderated by Bob Babbitt, Julie Moss, & Scott Tinley 

• Co-Produced: Nytro & Tri


940 S Coast Hwy 101, Encinitas, CA 92024