fsa gossamer bb30 crankset installation manual

This crank is a little different from the norm, being a four-arm design. Fits Shimano and SRAM 10-11 speed systems.Direct mount outer chainring and 90 BCD (bolt circle diameter) inner chainrings.Hollow carbon fiber arms with UD finish.This review centers around the 46 / 30 chainring pairing with 170mm arms, and FSA’s BB386EVO English thread bottom bracket.įeatures of the FSA SL-K Modular Adventure BB386EVO crankset include: Thanks to the adaptable BB386 EVO 30mm spindle, this modular system will fit a wide variety of frames with a range of BB standards 52/36 50/34, 48/32 or 46/30 are the offered ring combinations.” “SL-K modular BB386EVO is the latest FSA crankset for gravel, adventure or road use.

It took FSA to realize the potential of smaller gears. Sugino has had a crankset on the market for some time with 46 / 30 chainrings ( see our review of that crankset here), but most people in the bicycle industry hadn’t figured out the massive possibilities between lower gears and gravel / adventure cycling.ĭave Koesel, while still the road product manager at Felt, approached FSA and others to see if they’d produce a subcompact crankset in carbon. In the case of gravel cycling, even less. In brief, Dave and later FSA realized that a 50 x 11 gear is something the vast majority of all riders will use for less than one percent of their riding. The inspiration for this crank belongs to 3T’s Dave Koesel. But, one thing is for certain, FSA has been manufacturing top-notch bicycle components for many years.įSA SL-K Modular Adventure BB386EVO Crankset with Subcompact Chainrings I think Park and Wheels Engineering have some spec sheets too if you want to get geeky about it.“Full Speed Ahead (FSA) produces world-class bicycle components for road cycling and mountain biking and we support many of the world’s leading road and mountain bike teams.” This is according to the FSA’s company page, which doesn’t read into the company’s beginnings and later history. The quite useful hambini site has these engineering drawings Unless you know what you're doing don't buy anything, you may well end up wasting your money. Internet advice is not often what you need, and there is a dizzying array of bb standards, adapters and crank systems. To the OP get down to your LBS and get something that fits that you like.

Hahahah mate you clearly havent got a clue thats from a bikeradar article. In other words, although it’s essentially a press fit system, you can get a BB386EVO bottom bracket that’ll fit a threaded 68mm BB shell, so you can use new standard cranks on an old standard frame.' The other major factor in its favour is that the BB386EVO crank system is compatible with threaded bottom bracket shells. The BB386EVO crank arms are straighter than those you get with BB30, making for more rigidity.The bearings are positioned further apart than with BB30 for increased stiffness and stability.The BB386EVO axle, 30mm in diameter, has a higher stiffness-to-weight ratio than the 24mm axle of a system like MegaExo.And the axle diameter is 30mm – the same as BB30.Ĭlear? Okay, so what are the advantages? According to FSA: 'Anyway, the new BB386EVO system is press fit and uses an 86.5mm bottom bracket shell width – the frame is wider down there than currently and the axle is as long as that of an external system. Actually, just looking, its about as clear as mud:

Fsa gossamer bb30 crankset installation manual