Description:
Go longer.Stay quick.
The LOOK 765 Optimum is for the ride that keeps going after the easy miles are over. It pairs a purpose-built carbon endurance chassis with SRAM Rival AXS electronic shifting and a 10-36T cassette, without asking you to give up the lively feel of a road bike.
On this Metallic Pink build, Fulcrum Lite ER wheels and 30 mm Hutchinson Fusion 5 tubeless-ready tires make the specification straightforward: real road performance, more usable tire volume and a riding position intended for long days.
Endurance is not another word for slow.
A long-distance road bike has two jobs: keep you in an efficient position and stay composed when the pavement gets worse. The 765 Optimum addresses both with a shorter-reach, taller-front-end geometry and a carbon frame designed around the demands of sustained riding.
It is a convincing choice for gran fondos, century rides, climbing routes and regular training on imperfect roads. The 34 mm tire-clearance ceiling adds room to tune comfort, while the stock 30 mm tires keep the bike firmly in road territory. This is not a gravel build disguised as an endurance bike.
Endurance geometry makes it easier to establish a sustainable bar position instead of forcing a low race posture.
SRAM's 10-36T cassette extends the range for rolling roads and sustained climbs. Exact chainring sizes should be confirmed.
Hutchinson Fusion 5 Tubeless Ready 700 x 30 mm tires are fitted, with up to 34 mm clearance published by LOOK.
Comfort designed into the chassis.
LOOK describes the 765 Optimum as a carbon frame developed to balance comfort and efficiency, rather than chasing stiffness at every point. The frame construction and geometry work together to help reduce the fatigue that builds over rough pavement and long hours.
Its 27.2 mm LOOK LS1 carbon seatpost and the possibility of using wider road tires give riders further ways to refine the feel. A good fit and sensible tire pressure will do more for real-world comfort than any single component claim.
Electronic shifting. Practical gearing.
The Rival E1 AXS controls and derailleurs give this bike electronic shifting without the cost of a top-tier race groupset. LOOK pairs them with a SRAM XG-1270 E1 10-36T cassette and Rival E1 chain, along with a Token T47 SRAM DUB bottom bracket.
That is a useful specification for riders who split their week between flat group rides and longer climbing days. LOOK's current US listing does not publish the crankset tooth counts or brake rotor dimensions, so we will confirm those details before making a build-specific promise.
Know the exact build.
This is the Rival AXS / Fulcrum Lite ER version, not the 105 Di2 build or an R50D-equipped race bike. The table reflects LOOK's US listing, with secondary-source details identified in the companion audit.
| Model | LOOK 765 Optimum Rival AXS / Fulcrum Lite ER |
|---|---|
| Frame | LOOK 765 Optimum carbon endurance frame |
| Fork | Carbon fork |
| Shift / brake levers | SRAM Rival E1 AXS |
| Rear derailleur | SRAM Rival E1 AXS, 36T-rated |
| Front derailleur | SRAM Rival E1 AXS |
| Drivetrain | SRAM Rival AXS electronic, 2 x 12-speed |
| Cassette | SRAM XG-1270 E1, 10-36T |
| Chain | SRAM Rival E1 |
| Bottom bracket | Token T47 SRAM DUB |
| Brakes | Hydraulic disc brakes; rotor size not specified |
| Wheelset | Fulcrum Lite ER |
| Tires | Hutchinson Fusion 5 Tubeless Ready, 700 x 30 mm |
| Maximum tire clearance | 34 mm (manufacturer specification) |
| Handlebar | LOOK LS3 Alloy |
| Stem | LOOK LS3 Alloy |
| Seatpost | LOOK LS1 Carbon Superlight, 27.2 mm x 350 mm |
| Saddle | LOOK by San Marco Short Fit Dynamic Open Fit |
| Published complete-bike weight | 8.3 kg, size M |
| Color | Metallic Pink |
| Sizes | XS, S, M, L, XL |
LOOK lists 8.3 kg for size M. Pedals, crankset tooth counts, rotor sizes and final tubeless setup are not confirmed in the US listing. Specifications can change by production batch; ask Brimstone to confirm before ordering.
Five sizes. Full geometry.
Compare stack and reach first, then check head-tube length, standover and your current cockpit. Scroll the table horizontally on mobile. LOOK's geometry measurements are reproduced below.
| Measurement | XS | S | M | L | XL |
|---|---|---|---|---|---|
| Stack (mm) | 534 | 558 | 582 | 606 | 630 |
| Reach (mm) | 358 | 368 | 379 | 389 | 399 |
| Head tube angle (degrees) | 70.8 | 70.8 | 70.8 | 70.8 | 70.8 |
| Seat tube angle (degrees) | 74 | 74 | 74 | 74 | 74 |
| Seat tube length (mm) | 470 | 490 | 510 | 535 | 560 |
| Effective top tube (mm) | 511.8 | 528.7 | 545.5 | 562.4 | 579.3 |
| Front center (mm) | 576 | 594 | 613 | 631 | 650 |
| Trail (mm) | 67 | 67 | 67 | 67 | 67 |
| Fork offset (mm) | 50 | 50 | 50 | 50 | 50 |
| Chainstay length (mm) | 415 | 415 | 415 | 415 | 415 |
| Head tube length (mm) | 117 | 142 | 170 | 195.3 | 223.4 |
| Fork length (mm) | 385.5 | 385.5 | 385.5 | 385.5 | 385.5 |
| HAV (LOOK designation, mm) | 76 | 76 | 73.5 | 73.5 | 71 |
| Standover (mm) | 742 | 766 | 790 | 814 | 838 |
Lengths are millimeters except head-tube and seat-tube angles (degrees). HAV is retained exactly as LOOK labels it; we have not inferred a definition. These are 765 Optimum measurements, not 795 BLADE 2 RS geometry.
For the roads you actually ride.
The 765 Optimum makes sense when long hours, rougher pavement and varied elevation are part of the plan. The taller endurance position and generous road-tire clearance are not compromises if they help you ride more comfortably and consistently.
The 795 BLADE 2 RS is an aero race platform; the 765 Optimum is an endurance road bike. They should not share geometry, weight claims or component descriptions. We can compare their stack and reach against your current bicycle before you choose.
Useful answers, not a sales script.
The details worth checking when choosing a carbon endurance road bike.
What kind of road bike is the LOOK 765 Optimum?
The 765 Optimum is LOOK's carbon endurance road platform. Its taller front end and shorter reach than a race-focused position are designed to make longer days in the saddle easier to manage without turning the bike into a touring model.
Does this version use SRAM Rival AXS electronic shifting?
Yes. LOOK specifies SRAM Rival E1 AXS controls and derailleurs, with a 10-36T cassette. This is the Rival AXS / Fulcrum Lite ER build, not the Shimano 105 Di2 version.
What wheels come on this build?
The manufacturer lists Fulcrum Lite ER wheels. This listing does not describe them as carbon wheels, and the wheelset should not be confused with the LOOK R50D carbon wheels used on other LOOK builds.
What tires are fitted, and what is the maximum tire width?
LOOK lists Hutchinson Fusion 5 Tubeless Ready tires in 700 x 30 mm. The 765 Optimum frame is rated for tires up to 34 mm wide; actual tire width can vary by rim and tire combination, so clearance should be checked.
Does tubeless-ready mean the bicycle arrives tubeless?
No. Tubeless-ready describes tire compatibility, not the shipping setup. Confirm with Brimstone whether the bike is delivered with tubes or a completed tubeless installation.
How much does the LOOK 765 Optimum Rival AXS weigh?
LOOK publishes 8.3 kg for size M. Actual weight can vary by frame size, production components and whether accessories or pedals are installed.
Is the 765 Optimum suitable for gran fondos and century rides?
Yes. Endurance geometry, 30 mm tires and a 10-36T cassette make it a strong candidate for long road events, climbing routes and regular training. Fit and tire pressure remain important to comfort.
Is this a gravel bike?
No. It is an endurance road bike with a stated maximum tire clearance of 34 mm. It can be a practical choice for imperfect pavement, but it is not a substitute for a gravel bike with wider tires and off-road-oriented geometry.
What sizes are available?
LOOK publishes five frame sizes: XS, S, M, L and XL. We recommend comparing stack and reach to a bicycle that already fits you rather than relying on height alone.
How does it differ from the LOOK 795 BLADE 2 RS?
The 765 Optimum prioritizes an endurance riding position and day-long versatility. The 795 BLADE 2 RS is a race-oriented aero platform. They are different models with different geometry, components and intended riding priorities.
Are pedals included?
LOOK does not specify pedal inclusion in the US listing used for this description. Contact Brimstone to confirm what is supplied and to select pedals if needed.
Can Brimstone help with fit and availability?
Yes. Ask our team to review frame size, cockpit fit, current stock and the expected delivery window before ordering. We can also discuss assembly and setup.
Find your size. Plan the next long ride.
We can review your fit, verify the exact component build and confirm size availability before you order. Ask about assembly and delivery options without relying on a generic lead-time estimate.
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