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Comparison GHOST Nirvana Tour Essential 27.5 2021 frame XS vs GHOST Nirvana Tour Base 27.5 2021 frame S

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GHOST Nirvana Tour Essential 27.5 2021 frame XS
GHOST Nirvana Tour Base 27.5 2021 frame S
GHOST Nirvana Tour Essential 27.5 2021 frame XSGHOST Nirvana Tour Base 27.5 2021 frame S
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Model year20212021
Type
mountain (MTB)
mountain (MTB)
Frame and suspension
Frame sizeXSS
Recommended height145 – 160 cm155 – 170 cm
Frame materialaluminiumaluminium
Suspensionhardtailhardtail
Suspension type (fork)
air-oil /SR Suntour XCR/
air-oil /SR Suntour XCR/
Fork travel100 mm120 mm
Fork lockout
SeatpostGhost SP FG101Ground Fiftyone
Wheels and brakes
Wheel size27.5 "27.5 "
Tyre
WTB Ranger /2.3"/
WTB Ranger /2.3"/
Rim materialaluminiumaluminium
Rim
double wall /Rodi Tryp/
double wall /Schürmann YAK Disc/
Front brakehydraulic dischydraulic disc
Front brake modelShimano MT200Shimano MT200
Front rotor180 mm180 mm
Rear brakehydraulic dischydraulic disc
Rear brake modelShimano MT200Shimano MT200
Rear rotor180 mm180 mm
Front hub modelShimano HB-MT400Shimano FH-MT400-B
Rear hub modelShimano FH-MT410Shimano FH-MT400-B
Handlebar and transmission
Speeds1212
Chainrings11
Freewheel cogs1212
Freewheel/cassette modelShimano Deore M6100SRAM PG-1210
Crank modelShimano MT511, 32TSRAM SX Eagle, 32T
Rear derailleurShimano Deore XT M8100SRAM SX Eagle
Shifter typetriggertrigger
Shifter modelShimano Deore M6100SRAM SX Eagle
Handlebar typestraightstraight
StemGround FiftyoneGround Fiftyone
Handlebar modelGround FiftyoneGround Fiftyone
General
Saddle modelSelle Italia AdjustableSelle Italia Adjustable
Weight14.4 kg
Color
Added to E-Catalogmarch 2023june 2021

Frame size

Frame size refers to the distance from the saddle attachment point to the bottom bracket attachment point (axles with gears and pedals). The main parameters that determine the choice of a bike for frame size are the height of the user, the purpose of the bike and the intended riding style.It is also worth considering the female frame, which is lowered, which allows you to ride comfortably even in a skirt or dress.

User height is the most significant factor. In general, the taller the user, the larger the frame should be. The universal formula that allows you to calculate a specific size is as follows: the length of the leg from the groin to the heel in centimeters must be multiplied by 0.6, and then divided by 2.5 — you get the approximate size of the frame in inches. But in the characteristics of brands, the frame can also be indicated in the usual form for measuring size XXS, XS, S, M, L, XL and XXL.

However, note that this value is very arbitrary and approximate, it can only be used for simple bicycles not intended for extreme driving (for example, city bikes, see "Destination"). If you choose a more specialized model (mountain, road, BMX) — it is better to refer to the tables for th...e appropriate type, because. sizes for one height can vary significantly depending on the destination. In addition, different manufacturers have different frame geometry and measurement methods, and therefore, for the most accurate selection, it is recommended to use the manufacturers' own tables.

Note that the optimal frame size is not absolute — in most cases, for the same height, “neighboring” sizes are quite suitable. And here it is worth paying attention to the intended driving style. It is believed that small, well-controlled frames are better suited for extreme variant, and larger and more stable ones are better suited for long-term calm movement.

Recommended height

The user's height recommended by the manufacturer is calculated according to several parameters. One is the wheel diameter, and the second and more important is the frame size. If everything is simple with the wheel size — it is round and always the same, then the frame size complicates the choice. Different types of bicycles have their own frame shape, so even the same size can be suitable for different heights. And this is not to mention the features of the manufacturer, who like to do everything for themselves, and not in a general manner. Therefore, the size of the frame of each bicycle has its own size and it is still better to choose a bicycle by personally “saddling” it. If this is not possible, then our point will tell you what height, according to the manufacturer, this configuration (frame + wheel) of the bike is designed for.

Fork travel

Front fork travel on bicycles with damped suspension (see "Suspension"). Roughly speaking, the travel of a fork is the maximum distance that its size can be reduced by compression during shock absorption. The longer the fork travel, the better the shock absorption and “soft” ride it provides, but not all bikes require a lot of travel. Even within the same type (see “Purpose”), depending on the specific application and riding style, the optimal fork travel will be different — for example, freeride mountain bikes need good shock absorption, and for cross-country, on the contrary, a long fork travel will be redundant.

In general, if you do not plan on extreme cross-country riding or doing cycling tricks, this parameter is not critical. However, when choosing a bike for serious cycling, it is worth checking the recommended fork travel values (according to specialized literature or from professionals) and making sure that the desired model corresponds to them.

Seatpost

The model of the seatpost used in the bicycle.

Usually, this information is indicated if a high-quality part is used as a seat post. Knowing the name, you can find its detailed characteristics and descriptions; this is unlikely to be needed for light everyday driving, but may be useful for professional use.

Front hub model

The model of the hub used in the front wheel of a bicycle.

The hub is the central part in the wheel through which the axis of rotation passes. Features of the behavior of a bicycle depend on its characteristics, in particular, “rolling” (the ability to move by inertia, without pedaling). Knowing the model of the front hub, you can clarify its characteristics according to the manufacturer's documentation, find reviews from other users, etc., in order to determine how this model suits you.

Rear hub model

Model of the hub used in the rear wheel of a bicycle. See Front Hub Model for details.

Freewheel/cassette model

Model of a cassette — a system of rear wheel gears — mounted on a bicycle. Cassettes of different models differ in characteristics and can belong to different classes — from entry-level to professional. Knowing the cassette model, you can get acquainted with its features in more detail (according to official documentation, reviews, user reviews, etc.). This is especially important when choosing a bike for professional cycling.

Crank model

Model of a connecting rod mounted on board a bicycle.

Cranks is a system of levers that connects the pedals and stars of the front carriage. With its help, the energy of the pressure of the cyclist's legs on the pedals is transmitted. Connecting rods are made from hardened steel, aluminium, titanium or carbon fibre and can be solid or hollow inside. Knowing a specific brand of connecting rod, you can find technical documentation for it or, for example, study reviews on this part on the Internet.

Rear derailleur

Model of the derailleur (derailer) installed on the rear wheel cassette as standard on the bike. For more information on why you need to know the model of a particular bicycle component, see paragraph "Cassette Model".