|Bolt On Bike - MK1|
I had the frame shot blasted and powder coated at Unimet Enamellers in Reading, the standard of finish was excellent and well worth the £50 cost.
Fortunately the frame had plenty of clearance at the rear to fit the 700c wheel and also had a bridge on the seat stays to take a pivot mount calliper brake. I had a spare pair of eXotic 29er forks with an uncut steerer which were fitted in conjunction with a stronglight headset. I built the front wheel with a Shimano DH-3N30 hub dynamo and Rigida Sputnik Rim.
The biggest challenge came in choosing the right combination of bottom bracket chainset and rear sprocket to produce a straight chainline. Fitting a single chainset to this mountain bike frame was problematic in that there was no clearance at the chainstay for a chaining ring of anything bigger than around 34 teeth. Using a combination of a dished Sturmey Archer rear sprocket (18T( and a modified Stronglight ST 55 (38T) chainset I was able to achieve the desired gear range of 90 to 30 inches and a straight chainline.... to be continued