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A bicycle drop out comprising a seat stay mount having a first receiving portion, a chain stay mount having a second receiving portion, a back plate releasably connected to the seat stay mount and the chain stay mount, the back plate comprising a first member for engaging the first receiving portion

A bicycle drop out comprising a seat stay mount having a first receiving portion, a chain stay mount having a second receiving portion, a back plate releasably connected to the seat stay mount and the chain stay mount, the back plate comprising a first member for engaging the first receiving portion and a second member for engaging the second receiving portion, the back plate comprising a third slot for receiving an axle, the slot cooperatively disposed between the seat stay mount and the chain stay mount, and the seat stay mount and the chain stay mount having a gap therebetween for receiving a belt.

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I claim: 1. A bicycle drop out comprising: a seat stay mount having a first receiving portion; a chain stay mount having a second receiving portion; a back plate releasably connected to the seat stay mount and the chain stay mount, the back plate comprising a first member for engaging the first rec

I claim: 1. A bicycle drop out comprising: a seat stay mount having a first receiving portion; a chain stay mount having a second receiving portion; a back plate releasably connected to the seat stay mount and the chain stay mount, the back plate comprising a first member for engaging the first receiving portion and a second member for engaging the second receiving portion; the back plate comprising a slot for receiving an axle, the slot cooperatively disposed between the seat stay mount and the chain stay mount; and the seat stay mount and the chain stay mount having a gap therebetween for receiving a belt. 2. The bicycle drop out as in claim 1, wherein the back plate is releasably connected to each of the seat stay mount and the chain stay mount using a threaded fastener. 3. The bicycle drop out as in claim 1, wherein the seat stay mount further comprises a flange extending normally to the back plate. 4. The bicycle drop out as claim 1, wherein the chain stay mount further comprises a flange extending normally to the back plate. 5. The bicycle drop out as in claim 1 further comprising a member engaged in the gap between the seat stay mount and the chain stay mount. 6. A bicycle comprising: a frame having a seat and a front fork; a belt drive comprising a first sprocket and a second sprocket; a belt engaged between the first sprocket and the second sprocket; the second sprocket connected to an axle; a drop out for receiving the axle, the drop out comprising; a seat stay mount mounted to the frame; a chain stay mount mounted to the frame; the seat stay mount and the chain stay mount are temporarily separable to receive the belt therebetween; a back plate releasably connected to the seat stay mount and the chain stay mount; and the back plate comprising a slot for receiving an axle, the slot cooperatively disposed between the seat stay mount and the chain stay mount. 7. The bicycle as in claim 6, wherein the back plate is releasably connected to each of the seat stay mount and the chain stay mount using a threaded fastener. 8. The bicycle as in claim 6, wherein the seat stay mount further comprises a flange extending normally to the back plate. 9. The bicycle as in claim 6, wherein the chain stay mount further comprises a flange extending normally to the back plate. 10. The bicycle as in claim 6, wherein: the seat stay mount having a first receiving portion; the chain stay mount having a second receiving portion; and the back plate comprising a first reinforcing member for engaging the first receiving portion and a second reinforcing member for engaging the second receiving portion. 11. A bicycle belt drive module comprising: a toothed belt entrained between a first sprocket and a second sprocket; the second sprocket drivingly engaged with an axle; a drop out for receiving the axle, the drop out comprising; a seat stay mount mountable to a seat stay; a chain stay mount mountable to a chain stay; a back plate releasably connected to the seat stay mount and the chain stay mount; the back plate comprising a slot for receiving the axle, the slot cooperatively disposed between the seat stay mount and the chain stay mount; and the seat stay mount and the chain stay mount having a gap therebetween for receiving the toothed belt. 12. The bicycle belt drive module as in claim 11, wherein the back plate is releasably connected to each of the seat stay mount and the chain stay mount using a threaded fastener. 13. The bicycle belt drive module as in claim 11, wherein the seat stay mount further comprises a flange extending normally to the back plate. 14. The bicycle belt drive module as in claim 11, wherein the chain stay mount further comprises a flange extending normally to the back plate. 15. The bicycle belt drive module as in claim 11 further comprising a member engaged in the gap between the seat stay mount and the chain stay mount. 16. The bicycle belt drive module as in claim 11, wherein: the seat stay mount having a first receiving portion; the chain stay mount having a second receiving portion; and the back plate comprising a first reinforcing member for engaging the first receiving portion and a second reinforcing member for engaging the second receiving portion. 17. A bicycle drop out comprising: a seat stay mount having a first receiving portion; a chain stay mount having a second receiving portion; the seat stay mount and the chain stay mount are temporarily separable to receive a belt therebetween; a back plate releasably connected to the seat stay mount and the chain stay mount, the back plate comprising a first member for engaging the first receiving portion and a second member for engaging the second receiving portion; the back plate comprising a third slot for receiving an axle, the slot cooperatively disposed between the seat stay mount and the chain stay mount. 18. The bicycle drop out as in claim 17, wherein the back plate is releasably connected to each of the seat stay mount and the chain stay mount using a threaded fastener. 19. The bicycle drop out as in claim 17, wherein the seat stay mount further comprises a flange extending normally to the back plate. 20. The bicycle drop out as claim 17, wherein the chain stay mount further comprises a flange extending normally to the back plate. 21. The bicycle as in claim 6 further comprising an axle adjuster. 22. A bicycle belt drive module comprising: a toothed belt entrained between a first sprocket and a second sprocket; the second sprocket drivingly engaged with an axle; a drop out for receiving the axle, the drop out comprising; a seat stay mount mountable to a seat stay; a chain stay mount mountable to a chain stay; a back plate releasably connected to the seat stay mount and the chain stay mount, the back plate comprising a slot for receiving the axle; and the seat stay mount and the chain stay mount having a gap therebetween for receiving the toothed belt. 23. The bicycle belt drive module as in claim 22 further comprising an axle adjuster engaged with the back plate.