var osmUrl = 'http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png',
	stamenUrl = 'http://{s}.tile.stamen.com/toner/{z}/{x}/{y}.png',
	attrib = '&copy; Map tiles by <a href="http://stamen.com">Stamen Design</a>, under <a href="http://creativecommons.org/licenses/by/3.0">CC BY 3.0</a> | <a href="http://openstreetmap.org/copyright">OpenStreetMap</a> contributors',
	main = L.tileLayer(stamenUrl, {maxZoom: 18, attribution: attrib}),
	map = new L.Map('map', {
		layers: [main],
		center: [55.7501, 37.6687],
		zoom: 11 
	});

var myIcon = L.icon({
	iconUrl: 'bike.svg',
	iconSize: [75, 75],
	iconAnchor: [37.5, 75]
});

L.marker([55.7501, 37.6687], {icon: myIcon}).addTo(map);