Quick Verdict
Yes – the Specialized S-Works Tarmac SL7 is one of the fastest race bikes around. It combines an 800g FACT 12r carbon frame with aero tube shapes, SRAM Red eTap AXS and fast wheels, and it handles brilliantly. The trade-offs are a high price and a race-focused ride that is too stiff for casual riders.
The Specialized S-works Tarmac is an exciting bike for speed as it combines great aerodynamics and a lightweight construction. It is replaces the previous SL6 model with some cool features. The bike is a bit expensive but it does offer the go fast riders an ultra-stiff frame with sublime handling. For casual riders the bike is too race focused for their comfort.
Overview
Specialized S-Works Tarmac SL7
The bike comes equipped with the Specialized carbon named Fact 12r. This frame is quite lightweight at 800g and is 160g less than specialized outgoing model the S-Works Venge. You will find the more affordable Pro and expert models sporting the Fact 10r.
Besides, the frame you will find most of the features in the cheaper models with the geometry mainly remaining the same.
Some of the tweaks that have being included to improve aerodynamics include a more neater cabling system that runs underneath the stem and into the upper headset cover.
With the cabling you are better able to make everyday adjustments like changing the bar height but when you encounter a problem like replacing the upper headset bearing you will find yourself disconnecting the brake lines.
The Lineup
Specialized Tarmac SL7 Bike Types
The Tarmac SL7 comes in several builds, and Specialized makes other road bikes for riders who want something different.
S-Works Tarmac SL7
The S-Works model in this review is the top of the range. It uses the lightest FACT 12r carbon frame and comes with either Shimano Dura-Ace Di2 or SRAM Red eTap AXS.
Tarmac SL7 Pro and Expert
The Pro and Expert builds share the same geometry and aero shapes but use FACT 10r carbon, which is about 120g heavier. They come with cheaper groupsets, so they cost far less while riding very similarly.
Other Specialized Road Bikes
If the Tarmac is too racy, Specialized also makes the Roubaix for endurance riding on rough roads, the Aethos for light climbing bikes and the aluminum Allez for riders on a tighter budget.
Build Quality
Components and Frames
Frames
The frame is the heart of the SL7. It is light enough for climbing and shaped for speed on the flats.
FACT 12r Carbon
The SL7 comes with probably one of the best Specialized frames the FACT 12r. The carbon material comes in handy in that it is used to build a frame that weighs just 800g.
This 160g less than the S-Works Venge frame. The frame however, makes the SL7 to be more expensive than the previous models. The Pro and expert have the FACT 10r which makes them 120g heavier.
Finish and Colors
You can have the SL7 in either black or green color. Both colors look great for the bike and add to the aura that this is a fast bike.
We particularly like the carbon/color run silver green color as it keeps changing depending on the angle you are observing the bike. If the sun is high the bike can either be a bright green color or black.
Components
The S-Works build is fitted with top-level parts from SRAM and Specialized’s own Roval and S-Works ranges.
Drivetrain
Here you have two systems from S-Works. One model comes with Shimano Dura Ace Di2 while another has the SRAM Red eTap AXS. The model we are reviewing has the full wireless 12-speed groupset that comes with an amazing Quarq power meter crank.
The SRAM Red eTap wireless groupset provides the rider with enough pedaling range even when you are doing fast descents. On the downside you are going to facing some gear jumps especially in the easy gears. Shifting and gearing is precise which makes it great for racers.
Brakes
The S-Works tarmac comes with 160mm brake discs in the front and rear. The brakes are quite powerful and provide the necessary stopping power. For some the only downside is the rather rattling brake levers which may need some improvements.
Wheels
The has wide rims at the front and deep ones at the back. The front wheel measures 51mm deep with an outer width of 35mm. The rear one is 60mm and 30mm wide. With this kind of configuration you have very fast wheels but you also run the danger of them being susceptible to winds at high speeds.
On the downside the tires are more susceptible to punctures which can be a hazard at high speeds. The SL7 rims have a different rim set with shallower and wider on the front and at the back narrow and deep.
This has the effect of offering greater stability during crosswinds. It also has a positive effect on the aerodynamics.
Tires
For the tires you have 700x26C S-works turbo cotton tires. This are quite durable while contributing to the overall performance of the bike. They also help generate some considerable amount of grip and have low rolling resistance.
Cockpit
The bike uses an impressive two-piece cockpit that combines a 100mm S-Works tarmac integrated stem that is combined with a 420mm wide S-works Aerofly II bar.
Compared to other bikes in its category the routing does not look that nice but it has the advantage of allowing one to make adjustments with each part being configurable.
Ride Feel
Comfort and Performance
Comfort Features
The SL7 is a race bike first, so its ultra-stiff frame passes more road buzz to the rider than an endurance bike would. Experienced riders will enjoy the direct feel, but casual riders may find it harsh on long, rough rides.
The supple Turbo Cotton tires help take the edge off, and the two-piece cockpit makes it easy to fine-tune your bar height and reach for a more comfortable position.
Performance Features
The SL7 is incredibly fast due to its creative aerodynamics, wheels and gear set. When put to the test it was capable of outrunning its competition. The bike also handles down hills quite well with the brakes offering great stopping power.
The bike offers the same level of performance uphill and remains one of the fastest without losing speed. When put to a virtual test it did an average speed of 26.4 km/h (16.4 mph) at a distance of 150 km (93 miles).
Specs
Specialized S-Works Tarmac SL7 Specifications
| Model | Specialized S-Works Tarmac SL7 in review |
|---|---|
| Seat post | S-works Tarmac Carbon 20mm |
| Brakes | SRAM RED eTap AXS HRD 160/160mm |
| Drivetrain | SRAM Red eTap AXS GS-RED-E-B1 2×12 |
| Stem | S-works Tarmac Integrated Stem 100mm |
| Tires | S-Works Turbo cotton 28mm |
| Handlebar | S-Works Aerofly II 420mm |
| Chainring | 48/35 |
| Availability | Check price |
Sizing
Specialized S-Works Tarmac SL7 Size Table
| Size | 44 | 49 | 52 | 54 | 56 | 58 | 61 |
|---|---|---|---|---|---|---|---|
| BB Drop | 74mm | 74mm | 74mm | 72mm | 72mm | 72mm | 72mm |
| BB Height | 266mm | 266mm | 266mm | 268mm | 268mm | 268mm | 268mm |
| Bike Standover Height | 723mm | 735mm | 746mm | 768mm | 786mm | 808mm | 834mm |
| Chainstay Length | 410mm | 410mm | 410mm | 410mm | 410mm | 410mm | 410mm |
| Fork Length, Full | 366mm | 366mm | 366mm | 366mm | 366mm | 366mm | 366mm |
| Fork Rake/Offset | 47mm | 47mm | 47mm | 44mm | 44mm | 44mm | 44mm |
| Front Center | 572mm | 574mm | 577mm | 579mm | 592mm | 606mm | 613mm |
| Head Tube Angle | 70.5° | 71.75° | 72.5° | 73° | 73.5° | 73.5° | 74° |
| Head Tube Length | 93mm | 102mm | 113mm | 131mm | 151mm | 178mm | 198mm |
| Reach | 369mm | 378mm | 383mm | 387mm | 398mm | 405mm | 411mm |
| Seat Tube Angle | 75.5° | 75.5° | 74° | 74° | 73.5° | 73.5° | 73° |
| Seat Tube Length | 435mm | 447mm | 458mm | 475mm | 496mm | 517mm | 547mm |
| Stack | 491mm | 504mm | 517mm | 534mm | 555mm | 581mm | 602mm |
| Top Tube Length, Horizontal | 496mm | 509mm | 531mm | 541mm | 563mm | 577mm | 595mm |
| Trail | 71mm | 63mm | 58mm | 58mm | 55mm | 55mm | 52mm |
| Wheelbase | 970mm | 973mm | 975mm | 978mm | 991mm | 1006mm | 1013mm |
Alternatives
Are There Alternatives to the Specialized S-Works Tarmac SL7?
If the S-Works Tarmac SL7 is out of your budget or you want a different feel, these two race bikes are worth a look. Both are light, stiff carbon road bikes built for speed.
Wilier Cento10 Pro
Groupset Options
- Campagnolo Chorus 12S Disc
- Campagnolo Super Record EPS 12S DISC
- Shimano Dura Ace DI2 9170
- Shimano Ultegra 8020
- Shimano Ultegra DI2 8070
- SRAM Force ETAP AXS Disc 2x12XDR
- SRAM Red ETAP AXS Disc 2X12 XDR
WilierCheck Price
Scott Addict RC 15
Key Specs
- Addict RC Disc HMX Carbon Frame
- Addict RC HMX Fork
- Shimano Ultegra Di2 Disc 24 Speed
- Syncros Capital 1.0 35 Disc Wheels
- Schwalbe ONE Race-Guard Tires
- Syncros Carbon/Alloy parts
ScottCheck PriceVideo
Video Review of Specialized S-Works Tarmac SL7
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The Verdict
Pros and Cons of the Specialized S-Works Tarmac SL7
The Tarmac SL7 was designed with one goal, speed, and that shapes both its strengths and its weak points.
Specialized S-Works Tarmac SL7
Pros of the S-Works Tarmac SL7
- Aerodynamics: Improved aero shapes make it one of the fastest road bikes on the market.
- Lightweight: The FACT 12r frame weighs just 800g.
- Handling: The ultra-stiff frame gives sublime, precise handling.
- Race Focused: Wireless SRAM Red eTap AXS and a Quarq power meter make it race-ready.
Cons of the S-Works Tarmac SL7
- Expensive: The S-Works build costs a lot more than the Pro and Expert models.
- Headset Cabling: Adjusting or servicing the upper headset means disconnecting the brake lines.
- Punctures: The Turbo Cotton tires are fast but easy to puncture.
- Harsh for Casual Riders: The stiff, racy ride is too much for relaxed riding.
SpecializedCheck PriceGear For Your Road Bike
A few basics keep a road bike fast and flat-free. These are tires and tools we would put on our own bikes.
Road tire
Continental Grand Prix 5000
A fast road tire with a tough, grippy compound and good puncture protection – a favourite for riders who want more miles from every tire.
View on AmazonFloor pump
Topeak JoeBlow Sport III
Correct pressure is the easiest way to prevent pinch flats and uneven wear. 160 psi, a large gauge and a head for Presta and Schrader valves.
View on AmazonPressure gauge
Topeak SmartGauge D2
A digital gauge for precise pressure checks before every ride – properly inflated tires last longer.
View on AmazonTire levers
Park Tool TL-1.2 Tire Levers
Small, strong levers for swapping tires and fixing flats without scratching your rims.
View on AmazonMulti-tool
Crankbrothers M19 Multi-Tool
19 functions in one compact tool – hex and Torx keys, screwdrivers and a chain tool for roadside and trailside fixes.
View on AmazonBike lock
Kryptonite Evolution Mini-7
A compact hardened-steel U-lock with a cable for your wheels – easy to carry on rides to the shop or café.
View on AmazonAs an Amazon Associate, The Bike Magazine earns from qualifying purchases. Prices and availability are shown on Amazon.
Frequently Asked Questions
Quick answers to the questions riders ask most about the Specialized S-Works Tarmac SL7.
What makes the S-Works tarmac SL7 unique?
For one the bike is incredibly fast. It also comes with a unique two piece cockpit where the stem and handlebar are separated. While this may make the bike look more untidy it does come with the advantage for better customization.
How durable are the S-Works tarmac SL7 tires?
The Turbo cotton tires are designed for one thing – speed. They are capable of providing the rider with the right amount of grip and low rolling resistance but they do this at the expense of being easily punctured.
How much does the Tarmac SL7 frame weigh?
The S-Works FACT 12r frame weighs about 800g. The Pro and Expert models use FACT 10r carbon, which is around 120g heavier.
Is the Tarmac SL7 good for beginners?
Not really. It is a stiff, expensive race bike. Beginners will be more comfortable and save money on an endurance bike like the Roubaix or a cheaper Tarmac build.
