page_title: Inline skates
section_title: Frame
hierarchical_section_title: Inline skates / Parts / Frame
caption_attribution_description: The wheels and frame of an inline skate.
context_page_description: Inline skates are a type of roller skate used for inline skating. Unlike quad skates, which have two front and two rear wheels, inline skates typically have two to five wheels arranged in a single line. Some, especially those for recreation, have a rubber "stop" or "brake" block attached to the rear of one or occasionally both of the skates so that the skater can slow down or stop by leaning back on the foot with the brake skate.
  The modern style of inline skates was developed as a substitute for ice skates, for use by a Russian athlete training on solid ground for Olympic long track speed skating events. Life magazine published a photo of American skater Eric Heiden, training for the 1980 Olympics, using such skates on a Wisconsin road.
  During the late 1980s and early 1990s, Rollerblade, Inc., a company founded by Scott and Brennan Olson in Minneapolis, Minnesota, widely promoted inline skating through the registered trademark Rollerblade.
context_section_description: Typical recreational skates use frames built out of high-grade polyurethane (plastic). Low-end department or toy store skate frames may be composed of other types of plastic. Speed skate frames are usually built out of carbon fiber or extruded aluminum (more expensive but more solid), magnesium, or even pressed aluminium, which is then folded into a frame (cheaper but less sturdy).
  Carbon fiber frames are expensive but generally more flexible, making for a smoother ride at the expense of worse power transfer between the leg and the wheels. In general, carbon fiber frames weigh about 160–180 grams (5.6–6.3 oz). Recently, high-end carbon fiber frames with a monocoque construction have been introduced. They offer the same level of stiffness as aluminum frames while weighing only around 130 g (4.6 oz). Aluminum can weigh from 170 to 24 grams (6.00 to 0.85 oz). Frame length ranges from 2 wheel framed freestyle wheels (used in aggressive skating)  to around 230 mm (9.1 in) for short-framed four wheel skates (used in most inline designs), up to about 325 mm (12.8 in) for a five-wheel racing frame.
caption: The frame and wheels of an inline skate
exif: {"Image Make": "NIKON CORPORATION", "Image Model": "NIKON D50", "Image Orientation": "Horizontal (normal)", "Image XResolution": "300", "Image YResolution": "300", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Adobe Photoshop CS2 Windows", "Image DateTime": "2006:10:14 23:41:44", "Image ExifOffset": "216", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "806", "Thumbnail JPEGInterchangeFormatLength": "4288", "EXIF ExposureTime": "1/125", "EXIF FNumber": "28/5", "EXIF ExposureProgram": "Unidentified", "EXIF ISOSpeedRatings": "280", "EXIF DateTimeOriginal": "2006:10:06 17:27:50", "EXIF DateTimeDigitized": "2006:10:06 17:27:50", "EXIF ShutterSpeedValue": "1393/200", "EXIF ApertureValue": "497/100", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "37/10", "EXIF MeteringMode": "Pattern", "EXIF LightSource": "Unknown", "EXIF Flash": "Flash did not fire", "EXIF FocalLength": "20", "EXIF SubSecTime": "80", "EXIF SubSecTimeOriginal": "80", "EXIF SubSecTimeDigitized": "80", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "1441", "EXIF ExifImageLength": "830", "EXIF SensingMethod": "One-chip color area", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF DigitalZoomRatio": "1", "EXIF FocalLengthIn35mmFilm": "30", "EXIF SceneCaptureType": "Standard", "EXIF GainControl": "None", "EXIF Contrast": "Normal", "EXIF Saturation": "Normal", "EXIF Sharpness": "Normal", "EXIF SubjectDistanceRange": "0"}