Did find two other bits of info on our Walter John, one that in September 1895 he came third in the 12 hour race ( Which Pegasus claim they were the first club to introduce) - he did 231 miles 500 yds
In 1899 Walter was down as : Racing Hon.sec, and they are still using Kensal rise Athletic grounds, he also that day raced in the Half-mile handicap, in the 2 mile Tandem Handicap and in the Fifty mile Handicap. This was all in the August - so would be surprised if they just packed up - did they by chance merge with another club?
Strange entry I found was in March 1896, when he appears to be playing a Cornet at The Brondesbury Violin Classes Concert - well why not, his father after all was Bandmaster for the Tower Hamlets Rifle Volunteer Brigade. Just surprised he could find enough Puff after all that cycling!
Best
John