Some, mainly utility, bicycles use hub gears with between 3 and 14 ratios, but most use the generally more efficient dérailleur system, by which the chain is moved between different cogs called chainrings and sprockets in order to select a ratio.

Some components, which are often optional accessories on sports bicycles, are standard features on utility bicycles to enhance their usefulness and comfort.

Some even bring their bicycles to a complete stop, balanced upright with both feet still on the pedals ( a track stand ), in an attempt to make the other rider take the lead.

Some examples of how the team may facilitate play include adapting bicycles, providing switches so that the child can turn on music / video players, and connecting the child and her family to resources and programs within the community.

Some roads also have " minimum speed limits ", where slow speeds can impede traffic flow or be dangerous and on motorways slower vehicles such as horse drawn vehicles, bicycles and mopeds can be banned, e. g. in the United Kingdom.

Some of the right-of-way acquired in the 1960s for the Route 35 Freeway were transformed into a multi-use trail for bicycles and other vehicles to link the Wall Township Municipal Complext to the existing Edgar Felix Bikeway that runs from Manasquan to Allaire State Park.

Some 150 enthusiasts from 17 countries visited the island with their historic pedal bicycles from 2 to 6 June.

Some recumbent bicycle designs use longer frames than conventional bicycles.

Some trike conversion sets can also be used with recumbent bicycles to form recumbent trikes.

Some of the early Moulton bicycles are today considered to be collectors ' items.

Some have paving stones spaced closely enough for mules to walk, but are impassable for bicycles.

Some RVers extend the hub & spoke pattern one more level by carrying bicycles, Segways, or other low-carbon conveyances on their day-trip vehicle to tour / explore their various day-trip destinations.

Some utility bicycles have fully enclosing chain guards which virtually eliminate chain wear and maintenance.

Some touring bicycles have a third frame mounting location: under the downtube.

Some replacement brake cables for bicycles come with both styles, one on each end.

Some jurisdictions, though, require the licensing of courier bicycles.

Some touring bicycles, such as the Rivendell Atlantis and Surly Long Haul Trucker, offer frames designed for 26-inch ( ISO 559 ) wheels or for 700C wheels, with the frame geometry optimal for the selected wheel size.

Some representative biolithic institutions are: deliberative democracy as an alternative to bureaucratic government, bicycles and mass transit as an alternative to the private automobile, and mediation as an alternative to attorney-centered law.

Some racing bicycles, however, have a top tube that slopes down towards the rear of the bicycle ; the " compact " frame geometry was popularized by Giant.

Some students do not lock their dorm rooms or their bicycles.

Some bicycles are equipped with a rear-view mirrors mounted on a handlebar.

Some lowrider bicycles use as many as 144 brightly chromed spokes per wheel, although these are not meant for serious riding.

Some examples include: HUB ( helping understand bicycles ), The Ripple Repeat Project ( campus thrift store ), The Latin American Studies Scholarship Endowment Fund, an internship relevant to a student's Competence, or even a research paper.

Some painters have less interest in the experience of the moment, with its attendant urgencies and ambiguities, than in looking beyond the flux of particular impressions to a higher, more serene level of truth.

Some of the earlier episodes have touches of the supernatural, as suited to the legendary background.

Some historians have found his point of view not to their taste, others have complained that he makes the Tory tradition appear `` contemptible rather than intelligible '', while a sympathetic critic has remarked that the `` intricate interplay of social dynamics and political activity of which, at times, politicians are the ignorant marionettes is not a field for the exercise of his talents ''.

Some of these thoughts -- not all of them -- have taken organized form in later years.

He said, `` Some have criticized your book as being neither literary criticism nor history.

Some have felt that Washington Irving comes out rather slimly, but let them look at the title of the book ''.

Some of us have imagination and sensibility too.

Some of former President Truman's off-the-cuff discourses have been in that vein.

Some of the stumps are as much as three feet long, but most of them have been flattened by the pressure of the overlying sediments.

Some memorable plays have been drawn from books, notably Life With Father and Diary Of Anne Frank.

Some families already have held weekend rehearsals in their home shelters to learn the problems and to determine for themselves what supplies they would need.

Some special health requirements might have to be met.

Some weapons systems have become obsolescent while still in production, and some while still under development.

Some offices have very broad responsibilities, touching on almost all aspects of a university's instructional program.

Some manufacturers have had the foresight to provide a socket for the chuck key ; ;

Some recreation features, such as scenic values and water interest, also have greater overall value than other interests.

-- Some areas may already have been improved and contain buildings, roads, utilities, cleared land, etcetera which may raise the cost of the site.

Some distribution costs are kept up by competitive pressure, some by the fact that the customers have come to expect certain niceties and flourishes.

Some men have no talent for or interest in management ; ;

Some agents have been shown to be much more toxic or infectious to experimental animals when exposed to aerosols of optimum particle size than by the natural portal.

Some of those who question the value of BW have assumed that the only potential would be in the establishment of epidemics.

Some members of the bee family have become idlers, social parasites that live at the expense of their hardworking relatives.

Some investigators have found a parallelism between remissions and return of the sympathetic reactivity of the hypothalamus to the normal level as indicated by the Mecholyl test and, conversely, between clinical impairment and increasing deviation of this test from the norm.

Some of the oldest, most persistent, and most cohesive forms of social groupings have grown out of religion.