In the test: SRAM G2 Disc Brake

With the G2, SRAM launched a successor to the well-known Guide series a few years ago. Initially, the question was: Is the new G2 set really better? By now, the disc brake has been tested thousands of times and it is clear: Yes, indeed…

SRAM wanted to establish new standards in the braking sector with some changes and improvements. We have mounted the brake in the RSC version on the test bike and tested it thoroughly (Our test is a bit older, we have revised it for you).

SRAM G2 Disc Brake – Facts You Should Know:

With the G2 disc brake, SRAM wanted to hit a real home run once again. The Americans succeeded in this, but the series was not entirely new.

SRAM G2 – The Predecessors

The hydraulic GS brake is the worthy successor to the Guide series, but it is oriented towards the design of the Code series. Even the unboxing is quite pleasing… at first glance, we have a stable and reliable brake in hand. The distinctive Look with its angular design looks grand in any case. Just like the “Guide” disc brake, the G2 is positioned between the “Level” system for easy trail use and the downhill brake “Code”. According to SRAM's product specifications, the G2 delivers about 7% more braking power than its predecessors, thus catching up with the Code . We are curious to see if our test will confirm this!

The focus in development was not only on the power development of the brake but also on a balanced overall performance. The combination of braking power, ease of use, controllability, and heat resistance should convince in every respect.

Looks good in any case… the SRAM G2 in action.

SRAM G2… What is new?

You can buy the G2 in different variants, here is the RSC variant we tested compared to the Carbon Premium model:

Technical Specifications

SRAM G2 model variants Ultimate and RSC at a glance

What technologies are used in the SRAM G2?

The G2 brake caliper in close-up.

Many riders increasingly complained about tired forearms with the Guide because it required a lot of hand force to properly decelerate the mountain bike. This should no longer be the case with the new G2.

• To achieve this goal, SRAM continues to rely on the proven Swinglink System and minimally changed the pivot point of the lever to create a better power transmission .
• Visually, the lever and the brake caliper have become a bit edgier, we really like the new design.
• The MatchMaker is also used in the G2 . This mounting clamp adjustment option still allows you to tidy up your cockpit a bit and mount the brake along with the shifter or seatpost lever on the handlebar.
• In the top variant SRAM G2 Ultimate , the master cylinder comes with a carbon lever and sealed bearings, the RSC version is operated with an aluminum lever and has conventional bushings installed.
• The design of the brake caliper has reduced the opening for the brake pads, but the connection bolts of the two halves have been enlarged. This gives the caliper significantly more stiffness, which should benefit the braking performance.
• Another innovation is the newly developed brake pad called „Power“. As the name suggests, the organic brake pad should bite powerfully. However, the previous pads are still available and also compatible with the G2.
• In addition, the material of the brake lines has been revised. The increased flexibility of the hoses is intended to cause fewer problems during installation.

The SRAM G2 MTB brake in the test

After installation, the brake is adjusted, you can find plenty of how-tos on this, so we focus here on our test!

The individual adjustment of the brake

Our test G2 earns its first plus points on the first ride. Through the versatile adjustment options for the grip width and contact points allowed us to customize the brake to our needs with just a few adjustments. Despite the slight design changes, the lever feels as comfortable in hand as ever.

The G2 in action on the test bike.

The SRAM G2 on the roll

Once at the Wald, the fine modulation was noticeable from the very first meters. Even when rolling in loosely, a significant difference to the Guide is noticeable, as the pressure point feels much more precise and crisp.

During a full stop the first impression is confirmed. The new Power pad and the stiffer caliper design do an excellent job. In terms of braking power, the G2 easily surpasses its predecessor Guide , although whether it truly reaches the Code is questionable (the concentrated braking power of the SRAM flagship DH brake remains the benchmark in terms of braking power). However, even if the new brake doesn't have the brute force of the Code , the Power pads grip with a lot of power and impress us sustainably.

Downhill with SRAM's G2

Even on longer descents, the Sram G2 does a stable job. No signs of fatigue or fading are noticeable. Unfortunately, during the test phase, we didn't have the opportunity to take the disc brake to the Alps and push it to the limit on 20-minute descents. However, on local trails, enduro rounds, and DH tracks, it delivers solid performance. Our SRAM G2 RSC keeps its promises even after a long time.

Also stylish at the cockpit… G2 brake lever from SRAM

The SRAM G2 brake in the test – our conclusion

With the G2, Sram has brought a truly worthy successor to the Guide to the market. The redesign and new brake pads have given it a real upgrade in terms of modulation and braking power. We believe that the G2 is a top-notch 4-piston enduro brake . The braking power comes very close to that of the Code and in the model comparison, it even saves a few grams.

Whether the extra euros for the carbon Ultimate version Worthwhile, is a matter of conscience, which we cannot decide for you. Weight fetishists will probably not get around the carbon lever, but we were more than satisfied with the performance of the RSC variant and can recommend the cheaper version with a clear conscience.

The Brake Upgrade for Your MTB

MTB Disc Brakes | SRAM | Bleeding Kits

More MTB Parts in the Test:

• Marzocchi CR Steel Spring
• Marzocchi Bomber Fork
• Shimano XT Click Pedal
• Octane One OMG Fully in the Test