Skip to main content
High Tech Cycling Studio
Book a fit
High Tech Cycling Studio · San Antonio, TX

HTCS Bikefitting Services.

I fit your bike to how your body moves and how you ride. Every measurement is recorded, so your position can be repeated and adjusted over time.

Book a fitSee the services
10+
Years fitting
7 HRS
Furthest drive, each way
4
Levels of fit
ROADGRAVELMTBTRI
Disciplines fitted
The fitter

Who you're working with

I'm Alberto Arenas, a passionate, experienced bikefitter dedicated to helping cyclists of all levels ride more comfortably, efficiently, and confidently.

With over a decade in the bikefitting world, I've learned that every rider is unique, from your body, goals, and riding style to your experience with pain, performance limits, or just wanting to enjoy the ride more.

My approach goes beyond simple measurements; I take time to understand your journey, your cycling history, your goals, and what matters most to you on and off the bike.

My mission is to thoughtfully and precisely tailor your bike setup so that it fits you, whether you're chasing your next personal record, training for a big event, or simply riding for the joy of it. Every bikefit is personal, detailed, and focused on helping you feel stronger, more comfortable, and truly connected to your bike.

The reach

The fitter worth the drive

Riders come from every corner of Texas, some seven hours each way, and a few from clear across the country. Tap any point to trace the journey.

The Reach MapHTCS · San Antonio, TX

Whatever you ride, wherever you start, every rider gets the same care and a fit built around their own body and bike.

The studioIn-state driveBeyond TexasLocal crew
BEYOND TEXASLOCAL CREWHILL COUNTRY · I‑35SAN ANTONIOHOME · THE STUDIOEL PASO7 HRS EACH WAYDALLAS5 HRS EACH WAYHOUSTON3 HRS EACH WAYAUSTIN~1.5 HRS EACH WAY3 HRS EACH WAYLAREDOMcALLEN4 HRS EACH WAYKANSAS CITY, KSIRONMAN PREPBOSTON, MAFLEW IN FOR IT

Not every rider crosses a state line. Plenty roll in from just down the road, and that's the point: you don't have to be elite, or far away, to earn a fit built around you.

BOERNE30MINNEW BRAUNFELS35MINKYLE50MINBUDA1HRKERRVILLE1HR
Book your fitA fit built around you
Services

Four levels of fit

Every level is built on the same foundation: your body measured first, the bike adjusted to it second. What changes is how deep the analysis goes.

I'm buying a new bike and don't know what size.BikefinderSomething hurts when I ride, or I go numb.Performance FitI race, and I want to be faster for the same watts.Aero PerformanceI want everything measured, including my pedal stroke.Elite Lab
Comparison of the four HTCS fitting services
What's includedBikefinder & Saddle$175~1.5 hrsPerformance Fit$300~2 hrsAero Performance$375~3 hrsElite Performance Lab$475~4 hrs
Assessment
Anthropometric assessment✓✓✓✓
Sit-bone measurement & saddle selection✓✓✓✓
Frame geometry projection (stack & reach)✓———
Pre-fit interview, goals & injury history✓✓✓✓
Flexibility, hip mobility & pelvic control screen—✓✓✓
On the bike
Cleat positioning & foot–pedal calibration—✓✓✓
Dynamic motion analysis—✓✓✓
Full contact point optimization—✓✓✓
Aerodynamic analysis (AiRO CdA estimation)——✓✓
Helmet comparison testing——✓✓
Shimano Dynamics Lab jig, X/Y laser calibration———✓
3D pedal mechanics & left/right balance———✓
What you take home
Written geometry & saddle guide✓———
Retül positional measurement report—✓✓✓
Private performance dashboard—✓✓✓
Estimated CdA & projected watt savings——✓✓
Pedal stroke efficiency breakdown———✓
Follow-up review———Within 3 months
BookBookBookBook
Note

Booking Bikefinder & Saddle Optimization first? The full $175 comes off an Aero Performance Fit once your new bike arrives.

Bikefinder & Saddle

$175
~1.5 hrs

For riders buying a new or new-to-them bike who need to know what size actually fits before they spend the money.

  • Height, torso, arm reach, shoulder width, foot length and sit-bone width measured
  • Body analysis calculates your target stack & reach window
  • Saddle height and setback projected before you own the bike
  • Position compatibility checked across brands
  • Saddle width, shape and pelvic support strategy determined
  • You leave with a recommended frame size range and a position roadmap
Book Bikefinder

Performance Fit

$300
~2 hrs

For riders on a bike they already own who want the pain gone and the position right. The core fit.

  • Structured pre-fit interview covering goals, training and injury history
  • Functional flexibility, hip mobility and pelvic control screening
  • Cleat positioning, alignment and interface stability correction
  • Dynamic motion analysis of joint kinematics, knee tracking and hip angle
  • Saddle height, fore–aft, reach, bar height and weight distribution dialled
  • Retül measurement report and a private dashboard you keep
Book Performance Fit

Aero Performance Fit

$375
~3 hrs

Everything in the Performance Fit, plus drag. For racers and triathletes who want speed they can actually hold.

  • Everything in the Performance Fit
  • AiRO software evaluates how position changes affect drag
  • Position-specific CdA estimation and watt savings at your race speeds
  • Controlled testing of aerobar stack & reach, shoulder width, shrug and head position
  • Optional helmet comparison
  • Honest answer on the trade-off between fast and sustainable
Book Aero Performance

Elite Performance Lab

$475
~4 hrs

Everything in the Aero Performance Fit, plus the jig and pedal mechanics. The deepest session offered.

  • Everything in the Aero Performance Fit
  • Shimano Dynamics Lab jig replicates your position with X/Y laser calibration
  • Adjustments made independent of your bike's equipment limits
  • 3D pedalling analysis: left/right balance, force vectors, symmetry, 360° efficiency
  • Cleat alignment, stance width and saddle position refined on the data
  • Follow-up review within 3 months to validate how you've adapted
Book Elite Lab
Riders

What riders say

After the fit, I could stay in the hood position more comfortably, and staying in the drops felt more sustainable.

S.Performance Fit

This bike fit is so good!! It's so aero that I don't get airflow to my face. You crushed it — thank you!

M.S.Aero Performance Fit
Before you book

Common questions

Which one do I book?

Have a bike? Start with a Performance Fit. Don’t have it yet? Start with Bikefinder.

Do I bring my own bike?

Yes. Bring the bike you actually ride, exactly as you ride it. Don't clean it up or change anything first; wear patterns and how it's currently set up are useful information.

What should I bring and what should I wear?

Your cycling kit, your cycling shoes, and your pedals if they aren't already on the bike. If you use more than one pair of shoes, bring both. Any insoles or orthotics you ride with should come too.

Do I need to be a racer to book a fit?

No. Most riders who come in aren't racing anyone. Comfort, staying injury-free and enjoying longer rides are reasons enough. The process is the same regardless of how fast you go.

I get pain or numbness when I ride. Can a fit fix it?

Often, yes. A lot of knee, lower back, hand, foot and saddle discomfort traces back to position. The fit starts by finding out whether your issue is positional or something else. If it's something else, you'll be told that rather than sold a fit that won't help.

Do you fit triathlon and time trial bikes?

Yes. TT and triathlon positions are covered in every level, and the Aero Performance Fit and Elite Performance Lab are built specifically around getting a race position that's both fast and sustainable.

I'm buying a new bike. Should I get fitted before or after?

Before. The Bikefinder & Saddle Optimization session gives you a target frame size, stack and reach window and saddle recommendation before you commit to a frame, which is a much cheaper time to find out something doesn't fit. The $175 then comes off an Aero Performance Fit once the bike arrives.

Do I get anything to take away?

Yes. Every fit from Performance Fit upward includes a Retül positional measurement report documenting saddle height, setback, stack, reach and bar height, plus a private performance dashboard. Your position is recorded precisely enough to reproduce on a future bike or after an equipment change.

What if the position needs adjusting afterwards?

Get in touch. Bodies adapt over the weeks after a fit and small refinements are normal. The Elite Performance Lab includes a follow-up review within three months as standard.

How long does a session take?

From about 1.5 hours for Bikefinder up to around 4 hours for the Elite Performance Lab. Each service lists its duration above. Allow a little more time than the number says. Sessions aren't rushed.

Where is the studio?

Inside Paragon Training Center at 14701 San Pedro Ave #230, San Antonio, TX 78232, just off US-281 on the north side of the city.

Find the studio

Get in touch

The studio

Paragon Training Center

14701 San Pedro Ave #230

San Antonio, TX 78232

Contact

726-268-5569

info@hightechcyclingstudio.com

bookings.hightechcyclingstudio.com

Getting here

Just off US-281 on the north side of San Antonio, inside Paragon Training Center.

Get directions

Get your appointment

Road. Gravel. MTB. Triathlon. Every fit starts with your body.

Book now
Performance optimization for road, gravel, MTB & triathlon athletes
© 2026 High Tech Cycling Studio. All rights reserved.