Cyclosys Ti - Gravel Frame/Fork

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The hardest part of creating the Cyclosys was deciding how much 'gravel' and how much 'trail' to mix in to its capabilities. Make it too much of a gravel racer and it loses the confidence when the road narrows and the rocks get bigger, and of course if it is designed to excel on the roughest double track and single track it will become too sedate on the mellower surfaces. The Cyclosys is a culmination of many many variations over the years, as we have played the edges of what is capable enough without being dull. 

Tire clearance up to 700x45 or 650x52 allows for some pretty capable tires to be installed and with these types of bikes, tires define the ride. The Cyclosys is optimized for tires 35-45mm. Change the tires, change the personality of the bike.

Really, at the heart of the Cyclosys is a love of adventure and a desire to enjoy every ride to its fullest. Perfectly tuned for hours and hours of dirt roads or jamming through your favorite single track.   The newest version of the Cyclosys cannot be defined as anything other than balanced.

Is the Cyclosys perfect for a local gravel ride / race? How about ripping the local single track that has become mundane on your full suspension mountain bike? Or you scored an entry and are heading to Kansa this year? We think so...


sm md lg xl
horizontal tt
545 570 590 610
seat tube 460 490 520 550
74.5 73.5 73.5 73
head tube
125 150 175 200
71 71 71 71
bb drop
75 73 73 70
430 430 430 435
752 781 813 833
392 400 413 421
551 573 597 617
1032 1049 1070 1092


  • Double-butted top tube, down tube, seat tube and single butted chainstay tubes.
  • Artfully tapered chain stays with a massive connection at the bottom bracket for stiffness where it’s needed most. 
  • CNC tapered head tubes, custom length for each size, the inside walls of the head tube are beautifully relieved for weight savings.
  • Custom made seat tube with massive shaping at BB junction for more stiffness near BB area, again where it's needed. Running FEA tells us where we can build them up and where we can lighten.
  • Threaded T47 bottom bracket, internally relieved for weight savings. T47 shell provides a large area for the down tube, seat tube, and huge chain stays to be welded to for solid feel when hammering. 68mm shell 'external' bearing (or internal bearing with spacers.)
  • CNC custom dropouts utilizing forged derailleur hanger proven on all Turner Bikes since 2012
  • Internal cable routing, utilizing a multi-port cable guide system for mechanical or electric derailleurs, 1x or 2x chainrings, including routing for a mechanical 2X with a 27.2mm dropper! 
  • 3 bottle mounts:  on the seat tube, down tube, and under downtube, all welded so they will never come loose or corrode. 
  • Lunch box bosses on the top tube, welded on so as not to loosen or corrode.
  • threaded mounts on rear triangle for full coverage fenders, they are very stealth as most riders will never use them, but for the few that do need fenders... 
  • Matte polished for a maintenance-free finish, easy to touch up with a fine Scotch-Brite pad whenever you scuff it up with bags or shoes.
  • Etched graphics for long and carefree life.
  • Bolt-on head badge standard.
  • Stainless steel hardware throughout.
  • Bridgeless seat stays for more compliance. 
  • CNC machined ‘mud cutter’ chain stay bridges to help keep you moving on a rainy day, yet still provide more stiffness near BB where it’s needed most. 
  • ENVE Gravel fork and Cane Creek 40 headset included N/C, Top bearing, 42mm x 45/45  Bottom bearing, 52mm 45/35 
  • 142x12 rear hub spec.
  • 27.2 seat post for more flex
  • T47x68mm BB shell
  • Derailleur clamp = 31.8 seat tube 
  • Headset bearings are fully integrated, 42mm top, 52mm bottom. 
  • Specifications subject to change without notice. 


Why offer a Guarantee?

Simply put, we know that you are going to love your new Turner Bike. But given the chance that it just doesn’t seem to fit right, we want to ensure that you will be happy in the long run.

Our customer service rocks and our bikes ride like no other, but in the end, the choice is yours and we will stand behind that choice. If you cannot get comfortable on your new Turner Bike within 5 days of receiving it, give us a call and we will work out a solution, either a different size frame or even a different model.

Customer Reviews

Based on 14 reviews
Sweet Bicycle!

The whole purchasing process was excellent with great communication and timely shipping.The
frameset arrived in excellent condition and the quality was easy to see. The frameset built up nice and easy with a sram axs mullet. Plenty of room for 45's in the rear. The bike has that great ti ride with plenty of stiffness when you need to stand and crank. It feels very planted and stable on the descents and plows through the chunk when you need it. Thank you Turner Bikes!

Evan Trubee

I haven't even built it all up yet and I can tell it is going to be the best gravel bike ever.

One more thing

The BBInfinite T47 DUB BB works great with this frame, lightweight, spins like crazy, silent and it is sealed so I expect no issues from it.

1 week in and so far a great experience from order to riding.

Built the bike last week. SRAM AXS Force group, Ritchey Venture Max 46sm handlebars (huge reminds me of my motocross times). Yoeleo SAT DB 45 Pro wheel-set. The Sunday prior went to the Philadelphia Bike EXPO and thought that I should not have, I walked in and saw a sea of Ti frames and bikes (really thought I was going to get frame-set envy), believe me the Cyclosys gives up nothing to the really expensive bikes there from T-Lab and No22 neither in workmanship or the little extras (fender, dropper post ready and mud cutter). I am a roadie that rides a TCR Advance SL that I just built earlier this year (6.3 kg build ready to ride) and I thought that I will find the Cyclosys heavy on the climbs around my place (the build came out at 9.2 kg ready to ride) but she climbs effortlessly, stable as a rock on fast descents, buttery soft while riding (compared to the TCR, Ti is like wearing ear muffs that quiets the outside chatter), stiff and quiet (I like my rides stealthy). I am more than happy with going this way and already sign up for a couple of Spring races that I am looking forward to.
David has been so helpful with the build answering all my questions and giving me great recommendations. The buy was easy and got the frame-set quick with no issues. I will do business with him again in a heartbeat (even so this frame most likely will last a lifetime).

Still waiting to build

The frame and fork arrived immaculately packed with a minimum of packing material. Thanks for protecting the contents without filling up my local landfill!

Frame itself has the beauty of any titanium frame. Welds are good quality, but perhaps not as perfect stack of dimes of higher end boutique builders. You don't fully understand the swage of the seat tube to the BB shell or the mud cutter indents on the chainstays until you see it in person. They look the business! Waiting on a few parts and will build up this winter as the gravel anything crusher for 2023.