ANALOG SOUL. TITANIUM HEART.

NITROUS TI FRAME

A modern hardtail built for speed, distance, and the pure joy of riding.
No frills, just that unbeatable titanium feel and a geometry that begs to go fast.

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Regular price $2,550.00 USD
Regular price Sale price $2,550.00 USD
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The Nitrous Ti is everything you love about mountain biking, distilled into its purest form: a fast, responsive, and unapologetically analog hardtail built for long days in the saddle. Whether you're chasing podiums or disappearing into the backcountry, this bike does it all with that unmistakable titanium ride. The Nitrous delivers modern performance without losing that raw, connected feeling you only get on a hardtail. It's quick when you need it, comfortable when the miles pile up, and tough enough to keep going when the trail turns wild. No batteries. No distractions. Just the soul of a racer and the heart of titanium.


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  • CUSTOM TI TUBESET

    Subtle shaping at the lower end of the Down Tube to the spread load over the BB shell and a dramatically flared Seat Tube both increase lateral rigidity for better feel when smashing the pedals. Along with the custom tapered chainstays, these subtle features set the Nitrous ahead of the pack when it comes to ride tuning.

  • T47 BB

    ‘T’ stands for threaded! Due to popular demand threads are back, and the new T47 offers bigger bearings & longer service life than older threaded standards. It will easily fit the larger and 30mm aluminum spindle creating a stiffer crank assembly, which is up to 18% lighter than the traditional steel spindle system.

  • POST MOUNT DISC BRAKES

    The rear post mount disc brake is seamlessly integrated for perfect alignment and rock-solid braking. No adapters, no fuss, just pure stopping power.

  • 12mm BOLTED AXLE

    Bolts are stronger, stiffer, and simpler. Which is exactly why all our bikes come with them, it simply makes sense.

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UPDATED AND TRUE TO ITS ROOTS

  • 3D-printed chainstay ½ yoke – Awesome tire clearance to 2.6” and fits up to a 38T round chainring.
  • Streamlined 3D-printed cable ports – Sleeker, smoother, and designed for hassle-free internal routing.
  • No changes to geometry or tubing—because when something rides this well, why mess with it?

BUILT FOR MODERN SPEED

  • UDH-Compatible: Ready for SRAM Transmission or any derailleur from the last decade.
  • Multi-Port Internal Routing: Supports electronic or mechanical shifting and a stealth dropper post.
  • Progressive XC Geometry: Longer, lower, slacker—for a ride that’s both fast and confident.

WHY A HARDTAIL?

  • Not every trail needs full suspension—and with more sanitized trails, a hardtail is faster and more fun.
  • More capable than a gravel bike when the going gets rough.
  • Lighter and more responsive than a full-suspension bike on flowy, rolling terrain.

GEOMETRY AND DETAILS

S M L XL
1. RIDER HEIGHT 5'1"-5'6" 5'6"-5'10" 5'10"-6'2" 6'2"-6'6"
2. EFFECTIVE TT 590mm 620mm 640mm 675mm
3. SEAT TUBE 370mm 400mm 430mm 470mm
4. SEAT TUBE ANGLE REAL 75° 74.5° 74.5° 74°
5. HEAD TUBE 85mm 100mm 125mm 155mm
6. HEAD ANGLE 66.5° 66.5° 66.5° 66.5°
7. BB DROP 62mm 62mm 60mm 60mm
8. CHAINSTAY 435mm 435mm 440mm 445mm
9. REACH 428mm 448mm 462mm 478mm
10. STACK 610mm 623mm 644mm 672mm
11. WHEELBASE 1140mm 1166mm 1200mm 1241mm
12. STANDOVER AT MID TUBE 760mm 775mm 805mm 835mm
13. MAX POST INSERT 240mm 270mm 300mm 340mm

FRAME SPECS

NOTES
SEAT POST DIAMETER 30.9mm
HEADSET DIMENSIONS ZS 44 top, ZS56 lower
BB SHELL T47 Threaded, 73mm Use external bearing BB.
FORK LENGTH 120-130 (Geo based on 120 fork)
POST MOUNT 160MM REAR BRAKE 180 max
MAX TIRE CLEARANCE 29'' x 2.6''
MAX BOOST CHAINRING SIZE 36t oval 38t round 52mm - 55mm chainline

Customer Reviews

Based on 58 reviews
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M
Miles Holland
Hardtail Perfection

I have many years of experience riding many different mountain bikes, but I am a novice at building up a bike from the frame, so I was a little nervous giving this a shot. I wanted an end-game hardtail and I suspected the Turner Nitrous would be it. Not only is the final build everything I thought it was going to be, I am also left feeling incredibly satisfied to have assembled the bike myself. I couldn’t have done this without the support and guidance of David Turner, who is not only a remarkable frame builder, but an incredible model for customer support and care for his product and clients.

Now about the bike. It rides like no other hardtail in that it covers so much ground. It’s a cross country-ish bike, it’s a trail bike, it’s a dirt jump bike…ultimately it’s just a perfect hardtail. It has an incredibly well-balanced weight distribution that spreads out my 178lb, 6’1” body over a large frame perfectly. It is supple but also incredibly snappy and responsive, kind of an elusive characteristic in a bike (usually have to sacrifice one). It shreds but it also keeps you comfortable on long grinds and climbs.

The build includes a RS Sid Ultimate 120mm fork, Shimano XT component group, Logos carbon wheels, Girder carbon cranks, OneUp Dropper post and a 35mm Industry nine stem (usually 35mm feels to short to me, but on this relatively long bike its perfect).

I can’t say enough about my experience, from purchase, to consultation with Turner bikes, to the fun factor with the ride. I have reached hardtail perfection!

T
The One
Art

I received the frame and upon opening the box it felt like I was opening the Ark of the Covenant. White doves flew out of the box, an aura exploded from the top of the box and the presence of frankincense and mir permeated. That may have all been in my mind but I swear it felt like that. The small details in the etching to the head tube badge makes it feel world class. Most importantly David himself going back and forth in email with me to make sure everything was what I needed was just one amazing experience. Maybe he is the Messiah?

A
Andrew Bjornsen
Nitrous Ti

This is an absolute home run from Turner Bikes, A beautiful sculpted custom titanium tube set packed with modern geometry and a lot more.

The build quality and all the detail exceeds the competition and you have to get your hands on this frame to truly appreciate it.

I couldn’t be more thrilled with the Nitrous and the outstanding customer service from the legend David Turner! He truly cares about his customers!

Turner Bicycles changed the Game. Get 0ne!

K
K Dubb
Super capable downcountry HT.

So happy with my nitrous. David was a great help in the process and surely made the build much smoother. Out here in the Mojave desert I’m running 120 mm Sid with 2.4 syerra’s and a vittoria airliner xc light insert in the rear. I can run lower psi and man it really screams. Little slacker HT angle helps with the chunk. Climbs like a goat and handles so intuitively. Love it. Thanks David.

B
Bret Wilson
Super sweet ride

I built my 2024 Nitrous with David's generous guidance as a fast and light XC rig.  The frame is gorgeous and the ride is smooth and fast.  The Nirous is an exceptional climbing machine that is thoroughly capable in all terrain in northern NM I have ridden in the last 6 months.  The motto may be N+1, but when N=1 this bike makes me really happy I bought it, as it does everything so well. David is a gem of a human being and his bikes are beautiful, tough, and well executed.

All specifications are subject to change without notice.