In the test: SRAM G2 Disc Brake

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

SRAM wanted to establish new standards in the brake sector with some changes and improvements. We 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 score another real hit. The Americans succeeded, but the series was not completely new.

SRAM G2 – the predecessors

The hydraulic GS brake is the worthy successor of the Guide Series, but it is based on 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 already looks great in any case. Just like the “Guide” disc brake, the G2 positions itself 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 and thus closes the gap to the Code . We are curious if our test will confirm this!

The focus in development was not only on the brake's power development but also on balanced overall performance. The combination of braking power, operating comfort, 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 the variant RSC we tested compared to the Carbon Premium model:

Technical Specifications

SRAM G2 model variants Ultimate and RSC overview

What technologies are used in the SRAM G2?

The G2 brake caliper close-up.

Many riders increasingly complained about tiring forearms with the Guide because it required a lot of hand force to decelerate the mountain bike properly. 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 slightly 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 . With this attachment clamp modification option, you still have the option 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.
• In the design of the brake caliper, the opening for the brake pads has been reduced, but the connecting screws of the two halves have been enlarged. This gives the caliper significantly more stiffness, which should benefit braking performance.
• Another innovation is the newly developed brake pad called „Power“. As the name suggests, the organic brake pad is supposed to bite powerfully. However, the previous pads are still available and also compatible with the G2.
• Furthermore, the material of the brake lines has been revised. More flexibility of the hoses should lead to 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 for that, so we focus here on our test!

The individual adjustment of the brake

Our test G2 already scores first 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 still feels pleasantly familiar in hand.

The G2 in action on the test bike.

The SRAM G2 on the roll

Arriving at the Wald, the fine modulation was noticeable from the first meters. Even during a gentle roll-in, there is a noticeable difference to the Guide 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 designed caliper do a great job. In terms of braking power, the G2 easily surpasses its predecessor Guide , but whether it really matches 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 grab 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 occur. Unfortunately, during the test phase, we did not have the opportunity to take the disc brake to the Alps and push it to the limit on 20-minute descents. On local trails, enduro rounds, and DH tracks, it delivers solid performance. Our SRAM G2 RSC holds up even over a longer period, as promised by its developers.

Also chic at the cockpit… G2 brake lever from SRAM

The SRAM G2 brake in the test – our conclusion

With the G2, Sram has launched a truly worthy successor to the Guide on the market. The redesign and the new brake pads have given it a real upgrade in terms of modulation and braking power. We believe that the G2 is a first-class 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 worth it, is a matter of conscience that we cannot decide for you. Weight enthusiasts will probably not be able to avoid the carbon lever, but we were more than satisfied with the performance of the RSC version and can recommend the cheaper version with a clear conscience.

The braking upgrade for your MTB

MTB Disc Brakes | SRAM | Bleeding Kits

 

Further MTB parts in the test:

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