RACE FACE 91-4521K Ride Mountain Bike Stem Clamp 12-31-870-6 821973186931 Raceface 31.8-MM 70MM/6D

( Brand: Race Face ), ( Model: 12 31 870 6 ), ( Part Type: Bike Stem Clamp ), ( Color: Black ), ( Itemheight: 53 ), ( Itemlength: 188 ), ( Itemweight: 140 ), ( Itemwidth: 66 ), ( Packageheight: 44 ), ( Packagelength: 221 ), ( Packageweight: 160 ), ( Size: 70 Mm 6 D ), ( Manufacturer Part Number: 91-4521K ), ( UPC: 821973186931 )

Review RACE FACE Raceface Ride Mountain Bike Stem Black 31.8-mm Clamp 70mm/6d

The Race Face Ride mountain bike stem, model number 91-4521K, is a high-performance component designed to provide strength and versatility for your mountain bike. This stem is engineered with a 31.8mm clamp diameter and a 70mm length, making it suitable for various handlebars and frame setups.

The stem's six-degree rise angle is designed to put you in a more comfortable and efficient position on the bike. The six-degree angle allows for a slight tilt forward, reducing the need to overextend your neck and back while riding. This feature is particularly beneficial for long rides or technical trails where maintaining a focused and comfortable riding position is crucial.

The Race Face Ride stem is manufactured from 6000 series aluminum, ensuring both strength and lightweight properties. The anodized finish not only adds a touch of style but also provides an extra layer of protection against corrosion and wear. The stem's CNC-machined design ensures precise fitment and a clean, finished look.

The 31.8mm clamp diameter is a standard size for most mountain bike handlebars and is easy to find replacements for if needed. The 70mm length provides sufficient reach for most riders, but if you require a longer or shorter stem, Race Face offers a range of options to suit various preferences and riding styles.

The Race Face Ride mountain bike stem is designed to be compatible with most modern mountain bike handlebars and frames. Its 6-bolt clamping system ensures a secure and reliable connection to your handlebars, providing peace of mind and confidence while riding.

In summary, the Race Face Ride mountain bike stem, model number 91-4521K, is a versatile and high-performance component that provides both strength and comfort for your mountain bike setup. With a 31.8mm clamp diameter, a 70mm length, and a six-degree rise angle, this stem is suitable for various rider preferences and riding styles. Its CNC-machined aluminum construction ensures both durability and a clean, finished look.

Pros and Cons of buying a Race Face Ride Stem (Model 91-4521K, 31.8mm Clamp, 70mm/6-degree)

a. Durable: Race Face is known for its high-quality components, and the Ride Stem is no exception. It is designed to handle the rigors of off-road riding.

b. Adjustable: The 6-degree rise and 70mm length offer versatility for riders with different preferences or riding styles.

c. Lightweight: At approximately 130 grams, this stem is relatively lightweight compared to other options in the market.

d. Compatibility: With a 31.8mm clamp diameter, it is widely compatible with various handlebars.

a. Price: The Race Face Ride Stem is priced at the higher end of the market, which may not be suitable for budget-conscious buyers.

b. Limited color options: This stem is available in only a few color options, which might not cater to everyone's aesthetic preferences.

The Race Face Ride Stem (Model 91-4521K, 31.8mm Clamp, 70mm/6-degree) is a high-quality, durable, and adjustable component that offers versatility for mountain bikers. Its lightweight design and wide compatibility with handlebars are additional advantages. However, its higher price point may not be suitable for all budgets. Ultimately, if you prioritize durability, adjustability, and performance, the Race Face Ride Stem is a solid investment for your mountain bike setup.

If you are looking for a high-performance, adjustable, and durable mountain bike stem, the Race Face Ride Stem (Model 91-4521K, 31.8mm Clamp, 70mm/6-degree) is a recommended option. Its 6-degree rise and 70mm length offer versatility for various riding styles and preferences. Despite its higher price point, its durability and superior performance make it a worthwhile investment for serious mountain bikers.

Details:

A perfect compliment to your Ride bar and seat post, the stem is designed specifically for riders looking Race Face engineering quality at a value price point. Good value entry level stem with high end looks. Forged and shot preened 6061 aluminium, 4 bolt clamp. Machined Face plate logo.

RaceFace Ride Mountain Bike Stem Black, 31.8-mm Clamp, 70mm/6d, Black.

part #: 914521k prices

• $36.53-$52.99

specifications velocipedespark:

• brand: Race Face
• model#: 12 31 870 6
• part type: Bike Stem Clamp
• color: Black
• itemheight: 53
• itemlength: 188
• itemweight: 140
• itemwidth: 66
• packageheight: 44
• packagelength: 221
• packageweight: 160
• size: 70 Mm 6 D
• manufacturer part number: 91-4521K
• upc: 821973186931

returns velocipedespark:

• policy: Returns Accepted
• paid by: Buyer
• time: 30 Days
• method: Money back

payments velocipedespark:

• other
• wallet: Paypal
• credit card: Discover

seller velocipedespark:

• rating: 100.0%
• # reviews: 181
• city: Denver, Colorado

offer velocipedespark:

• started: May 21, 2026
• options: Ship-to-home
• sold: 0
• availability: In Stock
• quantity: 1

shipping velocipedespark:

• class: Standard
• type: Fixed
• cost: $0.00
• transit: 5-9 Days
• service: Standard

general velocipedespark:

• condition: New
• Cycling > Bicycle Electronics > Other Bicycle Electronics

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