Ultimate FI

Name: Ultimate FI
Brand: Litespeed Bicycles
SKU: ULTIMATE-DISC-FI
Price: 6245.0 USD
Availability: InStock

The original benchmark for titanium road race bikes, built with our legendary Superform SL tubset for ultimate all-around comfort and performance.

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YOUR BUILD HIGHLIGHTS

SURGICAL HANDLING

Nothing handles like an Ultimate Disc FI. Sporting a proven road race geometry, the Ultimate FI Disc can dive into corners, carve on a rail, climb with grimpeurs, and sprint with unyielding stiffness. Quite simply, the Ultimate Disc FI does it all.

PERFORMANCE-DRIVEN TUBE SHAPING

Litespeed’s longest-standing road race ride remains as it ever was on the hunt for the front of the race. And that’s achieved by way of masterfully shaped titanium tubes. From an aero-shaped teardrop downtube to our quadrilateral-formed top tube delivering exceptional stiffness, every tube has been cold-worked with a single purpose in mind: smooth, fast road performance.

TIRE CLEARANCE

Be ready for it all. With tire clearance up to 35mm on disc brakes, the Ultimate Disc FI can run fast and far on tires and wheels with the volume and compliance you demand. Tackle anything from technical crits to big, carving descents to rough broken roads.

LIFETIME WARRANTY

Ride with peace of mind knowing that your Litespeed bike is covered for life by our rider-first warranty.

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EASY FINANCING

Turn your dream bike into reality with easy financing, quick approvals, and low monthly payments that fit your budget.

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EXPERT HELP

Have questions? Our team of experts is ready and waiting to help. Simply call, email, or chat with us and get the answers you seek.

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THE LITESPEED ADVANTAGE

AS LOW AS 0% APR OVER 12 MONTHS*

Turn your cycling dreams into reality with easy financing and low monthly payments. Get approved quickly with no effect on your credit.

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EXPLORE THE DETAILS

Litespeed introduced the Ultimate in 1987, and when it was released, it was our “ultimate” road bike. It’s been refined and perfected over decades and remains the benchmark that all other titanium bikes are measured against.

Frame weight: 1,240 grams (size medium)
Superform SL 3AL/2.5V titanium tubeset
Aeroform design with bladed seatstays and airfoil-shaped downtube
Full Integration (FI) hides brake housing, cables, and wiring
Threaded T47i bottom bracket
Maximum tire size: 35mm*
Proudly handcrafted in Chattanooga, TN, using globally sourced premium materials

*Varies based on tire brand, tread, and wheel combination.

Select a build kit:

Groupset	Shimano 105 Di2
Headset	Select Option in Builder
Handlebar	Select Option in Builder
Bar tape	Lizard Skin DSP
Seatpost	FSA Gossamer Alloy 20mm Offset or Upgrade to Litespeed Titanium
Saddle	Fizik Vento Argo R5
Shifters	105 R7170 12 Spd
Rotors	Shimano RT70 160mm
Front derailleur	105 R7150 12 Spd
Rear derailleur	105 R7150 12 Spd
Crankset	105 R7100 50-34 12 Spd
Cassette	105 R7100 11-34 12 Spd
Chain	Shimano M7100 12 Spd
Bottom bracket	Praxis T47 I.B.
Tires	Continental Ultrasport3 28c or Continental GP 5000 S TR 30x
Wheelset	Select Option in Builder
Brakeset	105 R7170
Fork	Litespeed Carbon/ENVE Road In-Route

Groupset	Shimano Ultegra Di2
Headset	Select Option in Builder
Handlebar	Select Option in Builder
Bar tape	Lizard Skin DSP
Seatpost	FSA SLK Carbon 20mm Offset or Upgrade to Litespeed Titanium
Saddle	Fizik Vento Argo R5
Shifters	Ultegra Di2 R8170 12 Spd
Rotors	Shimano CL800 160mm
Front derailleur	Ultegra Di2 R8150 12 Spd
Rear derailleur	Ultegra Di2 R8150 12 Spd
Crankset	Ultegra R8100 50-34 12 Spd
Cassette	Ultegra R8100 11-30 12 Spd
Chain	Shimano M8100 12 Spd
Bottom bracket	Praxis T47 I.B.
Tires	Continental Ultrasport3 28c or Continental GP 5000 S TR 30x
Wheelset	Select Option in Builder
Brakeset	Ultegra 8170
Fork	Litespeed Carbon/ENVE Road In-Route

Groupset	Shimano Dura-Ace Di2
Headset	Select Option in Builder
Handlebar	Select Option in Builder
Bar tape	Lizard Skin DSP
Seatpost	Litespeed Titanium Included or Upgrade to Litespeed Titanium
Saddle	Fizik Vento Argo R5
Shifters	Dura-Ace Di2 R9270 12 Spd
Rotors	Shimano CL900 160mm
Front derailleur	Dura-Ace Di2 R9250 12 Spd
Rear derailleur	Dura-Ace Di2 R9250 12 Spd
Crankset	Dura-Ace R9200 50-34 12 Spd
Cassette	Dura-Ace R9200 11-30 12 Spd
Chain	Shimano M9100 12 Spd
Bottom bracket	Praxis T47 I.B.
Tires	Continental Ultrasport3 28c or Continental GP 5000 S TR 30x
Wheelset	Select Option in Builder
Brakeset	Dura-Ace 9270
Fork	Litespeed Carbon/ENVE Road In-Route

Groupset	SRAM Rival AXS E1
Headset	Select Option in Builder
Handlebar	Select Option in Builder
Bar tape	Lizard Skin DSP
Seatpost	FSA Gossamer Alloy 20mm Offset or Upgrade to Litespeed Titanium
Saddle	Fizik Vento Argo R5
Shifters	SRAM Rival AXS E1 12 Spd
Rotors	SRAM Paceline 160mm
Front derailleur	SRAM Rival AXS E1 12 Spd
Rear derailleur	SRAM Rival AXS E1 12 Spd
Crankset	SRAM Rival 46-33 12 Spd
Cassette	SRAM Rival XG1250 10-36 12 Spd
Chain	SRAM Rival Flattop
Bottom bracket	SRAM T47 DUB Internal
Tires	Continental Ultrasport3 28c or Continental GP 5000 S TR 30x
Wheelset	Select Option in Builder
Brakeset	SRAM Rival
Fork	Litespeed Carbon/ENVE Road In-Route

Groupset	SRAM Force AXS E1
Headset	Select Option in Builder
Handlebar	Select Option in Builder
Bar tape	Lizard Skin DSP
Seatpost	FSA SLK Carbon 20mm Offset or Upgrade to Litespeed Titanium
Saddle	Fizik Vento Argo R5
Shifters	SRAM Force AXS E1 12 Spd
Rotors	SRAM Paceline 160mm
Front derailleur	SRAM Force AXS E1 12 Spd
Rear derailleur	SRAM Force AXS E1 12 Spd
Crankset	SRAM Force 48-35 12 Spd
Cassette	SRAM Force XG1270 10-36 12 Spd
Chain	SRAM Force Flattop
Bottom bracket	SRAM T47 DUB Internal
Tires	Continental Ultrasport3 28c or Continental GP 5000 S TR 30x
Wheelset	Select Option in Builder
Brakeset	SRAM Force
Fork	Litespeed Carbon/ENVE Road In-Route

	XS	S	M	M/L	L	XL
Top Tube Length	51.5	52.5	54	56	57.5	59
Head Tube Length	10.1	11.5	12.9	15	17.6	20.7
Seat Tube Angle	74.5°	74.0°	73.5°	73.0°	73.0°	73.0°
Head Tube Angle	72.0°	72.5°	73.0°	73.0°	73.0°	73.0°
BB Drop	7.1	7.1	7.1	7.1	7.1	6.8
Chainstay Length	41.5	41.5	41.5	41.5	41.5	41.5
Wheelbase	97.1	97.6	98.1	99.7	101	102.4
Front Center	56.6	57.1	57.6	59.2	60.5	61.9
Standover Height	71.6	73.4	75.2	77.2	79.5	82
Fork rake	4.5	4.5	4.5	4.5	4.5	4.5
Seat Tube Length	45.5	47.5	49.5	51.5	53.5	55.5
Reach	37	37.5	38	39	39.5	40
Stack	51.5	53	54.5	56.5	59	62
Stem Length	90	90	100	100	110	110
Crank Length	170	170	172.5	172.5	175	175

Xs

147cm 58 - 157cm 62

S

157cm 62 - 165cm 66

M

165cm 66 - 175cm 69

Ml

173cm 68 - 180cm 71

L

178cm 71 - 188cm 74

Xl

188cm 74 - 198cm 76

When you select tubeless-ready wheels and tires, the bike will come from the Litespeed factory with tires set up tubeless with Stan's NoTubes sealant.

If you would like innertubes, you can make a note in the "component request field" on your order, and we will be happy to accommodate.

If you want confirmation whether your specific wheel/tire selection will come tubeless, feel free to contact us via email or chat.

2x maximum chainring size is 54/40t (Shimano) or 56/43t (SRAM). 1x maximum chainring size is 46t.

The Spezia is designed around 700c x 28mm-32mm tires. It has clearance to fit road tires up to 35mm wide.

Every Litespeed titanium frame is hand-built in the USA, in our factory in Chattanooga, Tennessee, by master framebuilders using premium, globally sourced materials.

The average lead time is 3-4 weeks. This is because every Litespeed titanium frame and complete bike is built to order. You will receive email updates informing you when we begin building and assembling your bike, and when it is shipped from our factory.

The Ultimate Disc is a road racing bike designed for road racing, crits, and general high-performance road riding.

The Spezia and Ultimate Disc have very similar race-oriented geometry and handling, but the Ultimate frame is slightly more compliant and a bit heavier, making it slightly more comfortable. The Arenberg has more upright, endurance-oriented geometry. The Arenberg is heavier, but provides even more comfort and compliance.

The Ultimate Disc is built with Litespeed's Superform SL tubeset. Superform SL is a superlight titanium tubeset that sets the benchmark for advanced titanium bicycle tubes. Superform SL is an aerospace-grade 3AL/2.5V titanium tubeset that is custom-formed and hand-crafted in-house, allowing us to employ multi-dimensional shaping and variable wall-thickness to minimize weight and maximize performance.